CA1068743A - Continuous business forms assembly with retained drive web - Google Patents
Continuous business forms assembly with retained drive webInfo
- Publication number
- CA1068743A CA1068743A CA281,320A CA281320A CA1068743A CA 1068743 A CA1068743 A CA 1068743A CA 281320 A CA281320 A CA 281320A CA 1068743 A CA1068743 A CA 1068743A
- Authority
- CA
- Canada
- Prior art keywords
- webs
- web
- superimposed
- lines
- along
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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- Advancing Webs (AREA)
- Handling Of Sheets (AREA)
Abstract
ABSTRACT OF THE DISCLOSURE
A series-connected business form is adapted to be fed through the printing device of a business machine and includes a continuous pair of super-imposed outer webs each having a row of spaced superimposed feed holes extend-ing along at least one marginal edge for engagement with the business form feeder of the business machine so that the form may be advanced into and past the printing device. At least one intermediate web is disposed between the outer webs with transfer material lying on opposite sides of the intermediate web, and the intermediate web is secured to only one of the outer webs. The webs are divided by transverse lines of weakening so that the form is separable into individual units, and the one web and its attached intermediate web is removable from the remainder of each unit so that, upon the printing of a number of such units, the next to the last of such units so printed may be separated along the transverse lines of weakening whereafter the one web and its intermediate web secured thereto of the last of such units may be separated from the other of such webs to leave such other web of the last unit available as a drive web for initiating the feed of the remaining units to be printed.
A series-connected business form is adapted to be fed through the printing device of a business machine and includes a continuous pair of super-imposed outer webs each having a row of spaced superimposed feed holes extend-ing along at least one marginal edge for engagement with the business form feeder of the business machine so that the form may be advanced into and past the printing device. At least one intermediate web is disposed between the outer webs with transfer material lying on opposite sides of the intermediate web, and the intermediate web is secured to only one of the outer webs. The webs are divided by transverse lines of weakening so that the form is separable into individual units, and the one web and its attached intermediate web is removable from the remainder of each unit so that, upon the printing of a number of such units, the next to the last of such units so printed may be separated along the transverse lines of weakening whereafter the one web and its intermediate web secured thereto of the last of such units may be separated from the other of such webs to leave such other web of the last unit available as a drive web for initiating the feed of the remaining units to be printed.
Description
10~ 43 Various types of continuous business forms are available for being fed to the printing means of business machines such as typewriters, tabulators, mini-computers, or the like. Such forms may be in the nature of manifolding assemblies including superimposed paper webs interleaved with carbon transfer sheets. Typical of such assemblies are shown in United States Patent No. 2,907,585 and in British Patent No. 1,376,447 which include rows of spaced marginal feed holes. Many of the continuous business forms are used with office computers and terminal printers and are intended to be used for relatively short runs. When such forms or assemblies are positioned in the print unit of the computer, the feed holes at opposite marginal edges thereof engage the feed pins of a pair of tractor pin feed units at the outfeed side of the print unit. Therefore, as the tractors are driven, the stationery assemblies advance into and past the print unit. However, it becomes necessary to position the tractors several inches downstream of the printing position in the direction of feed through the machine in order to effectively and accurately advance the assembly. As a consequence, each time a fresh continuous assembly to be printed is loaded into the front print unit, one form length at the leading end of the assembly is wasted since it is disposed slightly downstream of the print position in order to engage with the tractor units. Hence, such form length at the leading edge of the assembly must be discarded at the end of the print run.
This waste each time a new pack of forms is loaded into the print unit is compounded when relatively short lengths of the forms are prin-ted, especially if a single form length only is to be printed because during each printing operation a partly used pack is inserted and this entails los-ing one form length at each reloading.
It is therefore an object of the present invention to provide a continuous business forms assembly of improved construction which will avoid wasting a form length each time the assembly is fed into the print unit of a business machine.
1~68743 In accordance with the invention there is provided a series-connected business form adapted to be fed through a printing means of a busin-ess machine, comprising a feed means, a continuous pair of superimposed outer webs, said outer webs each having a row of spaced feed holes extending along at least one marginal edge thereof in superimposed relationship and being arranged to engage the feed means of the business machine so that the business form is thereby advanced into and past the printing means, said outer webs being secured together along one line of securement adjacent said superimposed feed holes, at least one intermediate web lying between said outer webs and having a marginal edge thereof spaced inwardly of said superimposed feed holes, said webs having spaced transverse lines of weakening in superimposed relation-ship for separating the form therealong into individual units, said intermed-iate web being secured to only one of said outer webs along another longitudin-al line of securement, and said one web having a longitudinal line of weaken-ing thereon spaced inwardly of said one line of securement which lies adjacent said superimposed feed holes, whereby upon the printing of a number of said units, the next to the last of said units so printed may be separated along said transverse lines of weakening.whereafter said one web and said intermed-iate web secured thereto of the last of said units may be separated from the other of said outer webs thereof to thereby leave said other web of said last unit available as a drive web for initiating the feed of the remaining units to be printed through the printing means.
Figure 1 is a plan view showing a part of the continuous busin-ess forms assembly according to the invention, partly broken away to illustrate the details thereof;
Figure 2 is a cross-secional view of the assembly taken substan-tially along line 2-2 of Figure l;
Figure 3 is a plan view at a reduced scale of the assembly of Figure 1 shown with one of the outer webs and its attached intermediate webs removed from the other of the outer webs to thereby provide a drive web for an lQ61~743 assembly to be fed through the printer; and Figure 4 is a sectional view similar to Figure 2 of another emb-odiment of the invention.
Turning now to the drawings wherein like reference characters refer to like and corresponding parts throughout the several views, a continu-ous business forms assembly is generally designated 10 in Figures 1 and 2 and comprises continuous upper and lower webs 11 and 12 overlying one another and having substantially the same width. Rows of spaced feed holes 13 are provid-ed in outer webs 11 and 12 along opposite marginal edges respectively in axial alignment as shown. Longitudinal lines of adhesive 14, 15 and 16 are provided adjacent the rows of feed holes for securing the outer webs together at their marginal edges. A longitudinal line of perforations 17 is provided only in upper web 11 slightly inwardly of line 15 of adhesive. Also, the upper web is longitudinally slit as along line 18 which lies slightly inwardly of line 16 of adhesive. It should be noted, however, that a line of perforations similar to 17 could be provided in web 11 in lieu of longitudinal slit 18 without dep-arting from the scope of the invention.
A plurality of intermediate webs 19 are superimposed between out-er webs 11 and 12, with carbon transfer sheets 21 lying on opposite sides of the intermediate webs. As can be seen, the intermediate webs extend slightly outwardly of the edges of the carbon transfer sheets and lie adjacent line 17 of perforations. Also, the intermediate webs are secured to the upper web via an overlying transfer sheet. For example, the transfer sheets are secured to the webs overlying them by means of superimposed lines 22 of adhesive. And, the transfer sheets are secured only to their underlying intermediate webs along lines 23 of adhesive spaced a slight distance away from lines 22 of ad-hesive.
The transfer sheets are slit as at 24 in a diagonal or herring-bone fashion and are disposed between lines 22 and 23 of adhesive. Similarly as in United States Patent No. 2,907,585, these flexing cuts produce a natural ~0ti~7'1~
hinging effect combined with the staggered lines 22 and 23 of gluing thereby permitting a substantial amount of free relative longitudinal movement of all the parts of the assembly. The inherent fanning of the assembly parts as they pass about a feed or platen cylinder is thereby not hampered by this fasten-ing means since the assembly parts are capable of realigning themselves in registry.
Upper web 11 and each of the intermediate webs 19 are provided Nith superimposed longitudinal lines 25 of perforations located slightly in-wardly of glue lines 22. Also, transverse lines 26 of perforations are spac-lQ ed along the form and lie superimposed in all the parts of the assembly so as to permit the form to be separated into individual units U after the assembly has been run through the printer.
Figure 4 shows a modification of the Figures 1 and 2 construct-ion as having an upper web 27 which differs from web 11 in that it is not provided with a row of feed holes at opposite marginal edges thereof. Instead, web 27 has its marginal edge 28 in alignment with the marginal edges of all but the bottommost intermediate ply lying therebeneath as clearly shown in Figure 4. Such bottommost intermediate web 29, instead, has a marginal edge provided with a row of spaced feed holes 13 respectively in alignment with holes 13 provided at the right-hand end of outer web 12. Webs 29 and 12 are secured together along a longitudinal line 31 of adhesive lying adjacent superimposed feed holes 13. And similarly as provided for the upper web in the Figure 2 embodimentl a longitudinal line 32 of perforations is provided in intermediate web 29 slightly inwardly of line 31 of adhesive. The outer parts and their interconnections of the Figure 4 construction are otherwise the same as in Figure 2. It should be noted, however, that lines 22 and 23 of adhesive in both embodiments may be replaced by lines of securement where-in paper staples such as those illustrated in British Patent No. 1,676,447 are used.
In operation, the assembly is advanced past the printing unit of the business machine as in the direction of the arrow shown in Figure 3 as the feed pins of the tractors engage feed holes 13 along opposite marginal edges thereof. After the form is printed with indicia I and is fed by the tractor pin feed devices to the outfeed side of the tractors, a predetermined length of various connected printed units U are separated from the unprinted assembly along a transverse line 26 of weakening. And, depending on the particular printing operation the printed units may have been individually burst from the printed assembly so as to be separated along line 26 by the time a printed unit is separated along line 26a. As shown in Figure 3, this printed unit comprises the second to the last printed unit USL, the last prin-ted unit U1 remaining connected to the unprinted assembly. However, web 11 together with webs 19 of the Figure 2 embodiment are removed from the remain-der of unit UL along line 17 of perforations and along transverse lines 26 located in these webs. And, if a line of perforations is provided in lieu of slit line 18, web 11 is likewise separated along such line. Similarly webs 27, 19 and 29 of the Figure 4 embodiment are removed from unit UL by tearing along lines 17 and 32 as well as along their respective transverse lines 26.
Lower web 12 is therefore now exposed and remains connected to the leading unprinted unit U of the unprinted assembly. This exposed lower web has images I' of the indicia transferred thereto which may serve as a record sheet from this particular unit. Also, feed strips 33 remain attached to the lower web, these feed strips being defined by portions of web 11 (Figure 2) extending outwardly of lines 17 and 18 upon removal of webs 11 and 19 as aforedescribed.
Otherwise, feed strips 33 are defined by a portion of web 27 ~Figure 4) and a portion of web 29 extending outwardly of respective lines 17 and 32. Unit UL
thereby serves as a drive unit for the unprinted assembly at such time as the assembly is to be printed during a subsequent printing run. The feed holes of drive unit UL are strengthened by reason of feed strips 33. The entire asse-mbly may be removed from the business machine and, when the assembly is reloa-ded thereinto, the leading unit is unit UL rather than an unprinted unit U so 10t;8743 that the entire assembly may be now advanced through the printing unit of thebusiness machine without wasting the leading unit since unit UL may subsequen-tly be separated from the reloaded assembly without being discarded since it serves as a record sheet for the last printed unit of the prior run.
It should be noted that, upon removal of webs 11 and 19 from lower web 12 as in Figure 2, these webs may be separated from the interleaved transfer sheets simply by grasping with one hand outwardly of the free edge of the transfer sheets and with the other hand outwardly of lines 25 and snap-ping in opposite directions. Webs 27, 19 and 29 may be similarly separated from the interleaved transfer sheets upon separation of these webs from bottom web 12.
Obviously many other modifications and variations of the present invention are made possible in the light of the above teachings. For example, carbonless transfer material of the standard variety may be coated on some or all the mating surfaces of the webs for the transfer of images between the outer webs in lieu of carbon transfer sheets as described. Also, lower webs 12 may be provided with longitudinal lines of weakening 17a, 18a underlying lines 17 and 18 in Figure 2 and lines 17a and 32a underlying lines 17 and 32 in Figure 4. Feed strips 33 may therefore also be removed from lower webs 12 after the printed assembly is burst into individual units to thereby provide clean record sheets without feed strips.
It is therefore to be understood that within the scope of the appended claims the invention may be practiced otherwise than as specifically described.
This waste each time a new pack of forms is loaded into the print unit is compounded when relatively short lengths of the forms are prin-ted, especially if a single form length only is to be printed because during each printing operation a partly used pack is inserted and this entails los-ing one form length at each reloading.
It is therefore an object of the present invention to provide a continuous business forms assembly of improved construction which will avoid wasting a form length each time the assembly is fed into the print unit of a business machine.
1~68743 In accordance with the invention there is provided a series-connected business form adapted to be fed through a printing means of a busin-ess machine, comprising a feed means, a continuous pair of superimposed outer webs, said outer webs each having a row of spaced feed holes extending along at least one marginal edge thereof in superimposed relationship and being arranged to engage the feed means of the business machine so that the business form is thereby advanced into and past the printing means, said outer webs being secured together along one line of securement adjacent said superimposed feed holes, at least one intermediate web lying between said outer webs and having a marginal edge thereof spaced inwardly of said superimposed feed holes, said webs having spaced transverse lines of weakening in superimposed relation-ship for separating the form therealong into individual units, said intermed-iate web being secured to only one of said outer webs along another longitudin-al line of securement, and said one web having a longitudinal line of weaken-ing thereon spaced inwardly of said one line of securement which lies adjacent said superimposed feed holes, whereby upon the printing of a number of said units, the next to the last of said units so printed may be separated along said transverse lines of weakening.whereafter said one web and said intermed-iate web secured thereto of the last of said units may be separated from the other of said outer webs thereof to thereby leave said other web of said last unit available as a drive web for initiating the feed of the remaining units to be printed through the printing means.
Figure 1 is a plan view showing a part of the continuous busin-ess forms assembly according to the invention, partly broken away to illustrate the details thereof;
Figure 2 is a cross-secional view of the assembly taken substan-tially along line 2-2 of Figure l;
Figure 3 is a plan view at a reduced scale of the assembly of Figure 1 shown with one of the outer webs and its attached intermediate webs removed from the other of the outer webs to thereby provide a drive web for an lQ61~743 assembly to be fed through the printer; and Figure 4 is a sectional view similar to Figure 2 of another emb-odiment of the invention.
Turning now to the drawings wherein like reference characters refer to like and corresponding parts throughout the several views, a continu-ous business forms assembly is generally designated 10 in Figures 1 and 2 and comprises continuous upper and lower webs 11 and 12 overlying one another and having substantially the same width. Rows of spaced feed holes 13 are provid-ed in outer webs 11 and 12 along opposite marginal edges respectively in axial alignment as shown. Longitudinal lines of adhesive 14, 15 and 16 are provided adjacent the rows of feed holes for securing the outer webs together at their marginal edges. A longitudinal line of perforations 17 is provided only in upper web 11 slightly inwardly of line 15 of adhesive. Also, the upper web is longitudinally slit as along line 18 which lies slightly inwardly of line 16 of adhesive. It should be noted, however, that a line of perforations similar to 17 could be provided in web 11 in lieu of longitudinal slit 18 without dep-arting from the scope of the invention.
A plurality of intermediate webs 19 are superimposed between out-er webs 11 and 12, with carbon transfer sheets 21 lying on opposite sides of the intermediate webs. As can be seen, the intermediate webs extend slightly outwardly of the edges of the carbon transfer sheets and lie adjacent line 17 of perforations. Also, the intermediate webs are secured to the upper web via an overlying transfer sheet. For example, the transfer sheets are secured to the webs overlying them by means of superimposed lines 22 of adhesive. And, the transfer sheets are secured only to their underlying intermediate webs along lines 23 of adhesive spaced a slight distance away from lines 22 of ad-hesive.
The transfer sheets are slit as at 24 in a diagonal or herring-bone fashion and are disposed between lines 22 and 23 of adhesive. Similarly as in United States Patent No. 2,907,585, these flexing cuts produce a natural ~0ti~7'1~
hinging effect combined with the staggered lines 22 and 23 of gluing thereby permitting a substantial amount of free relative longitudinal movement of all the parts of the assembly. The inherent fanning of the assembly parts as they pass about a feed or platen cylinder is thereby not hampered by this fasten-ing means since the assembly parts are capable of realigning themselves in registry.
Upper web 11 and each of the intermediate webs 19 are provided Nith superimposed longitudinal lines 25 of perforations located slightly in-wardly of glue lines 22. Also, transverse lines 26 of perforations are spac-lQ ed along the form and lie superimposed in all the parts of the assembly so as to permit the form to be separated into individual units U after the assembly has been run through the printer.
Figure 4 shows a modification of the Figures 1 and 2 construct-ion as having an upper web 27 which differs from web 11 in that it is not provided with a row of feed holes at opposite marginal edges thereof. Instead, web 27 has its marginal edge 28 in alignment with the marginal edges of all but the bottommost intermediate ply lying therebeneath as clearly shown in Figure 4. Such bottommost intermediate web 29, instead, has a marginal edge provided with a row of spaced feed holes 13 respectively in alignment with holes 13 provided at the right-hand end of outer web 12. Webs 29 and 12 are secured together along a longitudinal line 31 of adhesive lying adjacent superimposed feed holes 13. And similarly as provided for the upper web in the Figure 2 embodimentl a longitudinal line 32 of perforations is provided in intermediate web 29 slightly inwardly of line 31 of adhesive. The outer parts and their interconnections of the Figure 4 construction are otherwise the same as in Figure 2. It should be noted, however, that lines 22 and 23 of adhesive in both embodiments may be replaced by lines of securement where-in paper staples such as those illustrated in British Patent No. 1,676,447 are used.
In operation, the assembly is advanced past the printing unit of the business machine as in the direction of the arrow shown in Figure 3 as the feed pins of the tractors engage feed holes 13 along opposite marginal edges thereof. After the form is printed with indicia I and is fed by the tractor pin feed devices to the outfeed side of the tractors, a predetermined length of various connected printed units U are separated from the unprinted assembly along a transverse line 26 of weakening. And, depending on the particular printing operation the printed units may have been individually burst from the printed assembly so as to be separated along line 26 by the time a printed unit is separated along line 26a. As shown in Figure 3, this printed unit comprises the second to the last printed unit USL, the last prin-ted unit U1 remaining connected to the unprinted assembly. However, web 11 together with webs 19 of the Figure 2 embodiment are removed from the remain-der of unit UL along line 17 of perforations and along transverse lines 26 located in these webs. And, if a line of perforations is provided in lieu of slit line 18, web 11 is likewise separated along such line. Similarly webs 27, 19 and 29 of the Figure 4 embodiment are removed from unit UL by tearing along lines 17 and 32 as well as along their respective transverse lines 26.
Lower web 12 is therefore now exposed and remains connected to the leading unprinted unit U of the unprinted assembly. This exposed lower web has images I' of the indicia transferred thereto which may serve as a record sheet from this particular unit. Also, feed strips 33 remain attached to the lower web, these feed strips being defined by portions of web 11 (Figure 2) extending outwardly of lines 17 and 18 upon removal of webs 11 and 19 as aforedescribed.
Otherwise, feed strips 33 are defined by a portion of web 27 ~Figure 4) and a portion of web 29 extending outwardly of respective lines 17 and 32. Unit UL
thereby serves as a drive unit for the unprinted assembly at such time as the assembly is to be printed during a subsequent printing run. The feed holes of drive unit UL are strengthened by reason of feed strips 33. The entire asse-mbly may be removed from the business machine and, when the assembly is reloa-ded thereinto, the leading unit is unit UL rather than an unprinted unit U so 10t;8743 that the entire assembly may be now advanced through the printing unit of thebusiness machine without wasting the leading unit since unit UL may subsequen-tly be separated from the reloaded assembly without being discarded since it serves as a record sheet for the last printed unit of the prior run.
It should be noted that, upon removal of webs 11 and 19 from lower web 12 as in Figure 2, these webs may be separated from the interleaved transfer sheets simply by grasping with one hand outwardly of the free edge of the transfer sheets and with the other hand outwardly of lines 25 and snap-ping in opposite directions. Webs 27, 19 and 29 may be similarly separated from the interleaved transfer sheets upon separation of these webs from bottom web 12.
Obviously many other modifications and variations of the present invention are made possible in the light of the above teachings. For example, carbonless transfer material of the standard variety may be coated on some or all the mating surfaces of the webs for the transfer of images between the outer webs in lieu of carbon transfer sheets as described. Also, lower webs 12 may be provided with longitudinal lines of weakening 17a, 18a underlying lines 17 and 18 in Figure 2 and lines 17a and 32a underlying lines 17 and 32 in Figure 4. Feed strips 33 may therefore also be removed from lower webs 12 after the printed assembly is burst into individual units to thereby provide clean record sheets without feed strips.
It is therefore to be understood that within the scope of the appended claims the invention may be practiced otherwise than as specifically described.
Claims (5)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A series-connected business form adapted to be fed through a printing means of a business machine, comprising a feed means, a continuous pair of superimposed outer webs, said outer webs each having a row of spaced feed holes extending along at least one marginal edge thereof in superimposed relationship and being arranged to engage the feed means of the business machine so that the business form is thereby advanced into and past the print-ing means, said outer webs being secured together along one line of securement adjacent said superimposed feed holes, at least one intermediate web lying between said outer webs and having a marginal edge thereof spaced inwardly of said superimposed feed holes, said webs having spaced transverse lines of weakening in superimposed relationship for separating the form therealong into individual units, said intermediate web being secured to only one of said outer webs along another longitudinal line of securement, and said one web having a longitudinal line of weakening thereon spaced inwardly of said one line of securement which lies adjacent said superimposed feed holes, whereby upon the printing of a number of said units, the next to the last of said units so printed may be separated along said transverse lines of weakening whereafter said one web and said intermediate web secured thereto of the last of said units may be separated from the other of said outer webs thereof to thereby leave said other web of said last unit available as a drive web for initiating the feed of the remaining units to be printed through the printing means.
2. The business form according to claim 1, wherein said outer webs have said superimposed feed holes provided along opposite marginal edges there-of, said outer webs being secured together along lines of securement adjacent said superimposed feed holes, and said one web being delimited by a longitud-inal edge spaced inwardly of said marginal edge lying opposite said one marg-inal edge.
3. The business form according to claim 1, wherein a plurality of intermediate webs are superimposed between said outer webs and a plurality of transfer sheets are provided on opposite sides of each said intermediate web, said transfer sheets being secured along superimposed first lines of adhesive to said one web and to said intermediate webs overlying same and be-ing secured along superimposed second lines of adhesive to only said interm-ediate webs underlying same, said first and second lines of adhesive being spaced apart, said intermediate webs having marginal edges extending outward-ly of marginal edges of said transfer sheets lying adjacent said one marginal edge of said outer webs, and said one web and said intermediate webs having longitudinal lines of weakening spaced inwardly of said superimposed lines of adhesive, whereby upon separation of said one web and its attached inter-mediate webs from said other web, said one and said intermediate webs may be separated from said transfer sheets.
4. The business form according to claim 1, wherein said intermed-iate web and said other web each have a row of superimposed feed holes extend-ing along a marginal edge thereof opposite said one marginal edge, said inter-mediate and other webs being secured together along another line of secure-ment adjacent said superimposed feed holes at said opposite edge, and said intermediate web having a longitudinal line of perforations spaced inwardly of said another line of securement.
5. The business form according to claim 1, wherein a plurality of superimposed intermediate webs are provided between said outer webs, one of said intermediate webs being secured to said other web and having rows of superimposed feed holes extending along marginal edges thereof opposite said one marginal edge, transfer sheets lying on opposite sides of said intermed-iate webs and being secured along a first line of securement to webs overly-ing same, said transfer sheets being also secured along second lines of sec-urement to only said underlying intermediate webs, said intermediate webs extending outwardly of said transfer sheets adjacent said one marginal edge, and said one and intermediate webs having a longitudinal line of weakening spaced inwardly of said lines of securement, whereby upon separation of said one web and its attached intermediate webs from said other web, said one and said intermediate webs may be separated from said transfer sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA281,320A CA1068743A (en) | 1977-06-24 | 1977-06-24 | Continuous business forms assembly with retained drive web |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA281,320A CA1068743A (en) | 1977-06-24 | 1977-06-24 | Continuous business forms assembly with retained drive web |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1068743A true CA1068743A (en) | 1979-12-25 |
Family
ID=4108967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA281,320A Expired CA1068743A (en) | 1977-06-24 | 1977-06-24 | Continuous business forms assembly with retained drive web |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA1068743A (en) |
-
1977
- 1977-06-24 CA CA281,320A patent/CA1068743A/en not_active Expired
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