EP0353208B1 - Industrial sewing machine for simultaneously performing a plurality of improved seaming lines - Google Patents
Industrial sewing machine for simultaneously performing a plurality of improved seaming lines Download PDFInfo
- Publication number
- EP0353208B1 EP0353208B1 EP89830344A EP89830344A EP0353208B1 EP 0353208 B1 EP0353208 B1 EP 0353208B1 EP 89830344 A EP89830344 A EP 89830344A EP 89830344 A EP89830344 A EP 89830344A EP 0353208 B1 EP0353208 B1 EP 0353208B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sewing machine
- gripper
- machine according
- drives
- needle
- 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 - Lifetime
Links
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B35/00—Work-feeding or -handling elements not otherwise provided for
- D05B35/02—Work-feeding or -handling elements not otherwise provided for for facilitating seaming; Hem-turning elements; Hemmers
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B1/00—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both
- D05B1/08—General types of sewing apparatus or machines without mechanism for lateral movement of the needle or the work or both for making multi-thread seams
- D05B1/18—Seams for protecting or securing edges
- D05B1/20—Overedge seams
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B57/00—Loop takers, e.g. loopers
- D05B57/30—Driving-gear for loop takers
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B73/00—Casings
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B73/00—Casings
- D05B73/04—Lower casings
- D05B73/12—Slides; Needle plates
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
- D05D2207/00—Use of special elements
- D05D2207/02—Pneumatic or hydraulic devices
- D05D2207/04—Suction or blowing devices
Definitions
- the present invention relates to a sewing machine,for industrial use,which has been specifically designed for simultaneously performing a plurality of different seaming lines.
- the document GB-A-2 188 951 relates to a seaming machine having two needle bars which are parallel to one another and perform on a same fabric piece two separated seamings, parallel and with the same type of stitch.
- the machine disclosed in this document accordingly, is not adapted to carry out two consecutive seamings of different types as those which can be performed by Applicant's seaming machine disclosed in the new main claim.
- the document DE-C-72258 discloses a seaming machine which is tilted on a side and enclosed in a casing in order to prevent possible lubricating materials from contacting the fabrics being seamed.
- This is a machine including a single needle bar and which, accordingly, can not perform simultaneously different seaming operations Practically, the machine of this document operates as a conventional seaming machine in order to perform a single type of stitch at a time.
- the document US-A-2 238 796 relates to a seaming machine which does not comprise any needle bar, since the needle of this machine is controlled by a lever and can perform exclusively a type of stitch.
- the seaming machine of this document has been designed for facilitating the operation of seaming the edge portions of the fabrics, in particular a tubular fabric piece.
- the machine disclosed in this patent can not perform simultaneously two types of seaming operations.
- the documents DE-O-3 407 271 and CH-O-665229 relate substantially to the same machine.
- the document CH-O-665229 is an improvement of the document DE-O-3407271.
- These documents relate to a seaming machine which can simultaneously perform seaming operations on the opposite edges of a half-finished product. Practically there is herein disclosed a seaming machine having two symmetrical and opposite seaming heads which perform separately two equal seams on opposite flaps of a same fabric piece. The type of machine disclosed in these patents is not adapted to perform simultaneously two different types of seams.
- the document FR-O-691277 relates to a seaming machine having two needle bars in a single block.
- the positions of the control mechanisms and several control members are fixed Because of this reason, this machine can perform exclusively a type of work.
- the control unit of the several control mechanism consists of a single shaft which drives a horizontal needle bar parallel to the shaft and a vertical needle bar perpendicular to the preceding one, operating the single provided crochet. Because of this reason, the seaming machine of this document can exclusively form a chain stitch with the horizontal needle, since this needle bar is parallel to the shaft driving it and since the crochet discloses during its stroke an ellipsoidal configuration perpendicular to the needle.
- the vertical needle bar can form exclusively an ornamental stitch since in order to carry out a different type of stitch there are necessary two crochets.
- the lower or bottom crochet is used for latching the yarn of the needle in the bottom portion of the seam
- the top crochet is used for latching the yarn of the bottom crochet so as to bring it under the needle on the top portion of the seam.
- the machine disclosed in this FR-A-691277 document has a single drive for the fabric, perpendicular to the vertical needle bar and is arranged bridging the vertical needles.
- the horizontal needle bar does not include any drive for the fabric. None of these two needle bars is associated with a differential drive and accordingly the fabric, between the two needle bars, can not be spread or caused to shrink depending on the requirements.
- the main object of the present invention is to overcome the above mentioned drawbacks, by providing a sewing machine,for industrial use,which is specifically designed and arranged to perform,in a single pass, two or more seaming lines, either of the like or different type.
- Another object of the present invention is to provide such a sewing machine in which the fabric being sewn can also be fed or transported with different angles.
- Another object of the present invention is to provide such a sewing machine in which the fabric flaps or portions to be sewn can be oriented in all of the working orienting directions,independently from the fact that said fabric portions are in a loose condition or in a partially assembled condition.
- the sewing machine for industrial use comprises a supporting frame which has been specifically designed for supporting at least a main shaft 1 which is driven by an electric motor (not shown).
- main shaft 1 there are keyed at least two pulleys,indicated respectively at 2 and 3,provided for transmitting a rotary movement to corresponding driven shafts 4 and 5 through corresponding belts 6 and 7.
- Said driven shafts can also be driven by other driving sources,in a timed manner.
- the driven shaft 4 supports a first cam member 8 which,through a connecting rod 9,a ball joint 10 and a swinging pivot sleeve 11,drives a lever 12 for controlling two or more needle bars 13.
- These needle bars can be arranged in different planes,with different angles( with a single and timed driving assembly) and can support,by means of clamp members 14,corresponding or respective needles 15 which can be selectively operatively driven.
- a second cam member 16 which,through a connecting rod 17,a ball joint 18,a sleeve 19 and a swinging pivot pin 20 drives a trimming knife 21 supported on a curved supporting arm and the blade of which is indicated at 22.
- a third cam member 23 which,through a connecting rod 24, a ball joint 25 and a sleeve 26,drives a first swinging pivot pin 27 which in turn,through a lever,drives a second pivot pin 28.
- pivot pins 29 and 30 which can rise gripper bearing sliders,respectively indicated at 31 and 32.
- the gripper bearing slide 31 fixedly supports the gripper or clamp 33 which operates to feed the fabric to a needle or to the needles.
- the slider 32 in turn,supports the gripper or clamp 34 for driving the fabric beyond the first needle assembly.
- the gripper 33 can also be called “differential gripper” since it can carry out a different operating stroke from that of the gripper 34 which, in turn,can be called “ stitching gripper”.
- This pivot pin drives rotatively the levers 40 and 41 which are respectively provided with driving pins 42 and 43,which,in operation,drives the respective gripper bearing sliders 31 and 32 so as to bring said sliders in contact with the fabric being sewn and cause said sliders to come back,in a lowered condition,under the control of the mentioned eccentric levers 29 and 30.
- the disclosed sewing machine also comprises means for orienting the fabric portions to be sewn in all of the directions,independently from the fact that said portions are loose or assembled.
- the timed operation of the mentioned grippers will provide a simultaneous and timed "transportation" of two or more seaming lines,owing to the different angles of the two or more seaming lines themselves.
- This sleeve,as is shown,restrains a swinging pivot pin 48 thereon there is keyed a lever 49 bearing the lower hook member 50,which can perform a rotary movement.
- a suitable protecting casing 60 is moreover provided,which advantageously also operates as an operating table.
Abstract
Description
- The present invention relates to a sewing machine,for industrial use,which has been specifically designed for simultaneously performing a plurality of different seaming lines.
- As is known,in the garment industry frequently arises the need of performing several seaming lines which can be,for example,of the overlock or chain stitch type.
- Also known is the fact that the mentioned main stitches must frequently be performed on a given portion of the same cloth or garment.
- For example,for seaming a shirt sleeve,it is necessary to provide overlock stitches and then this seaming arrangement must be "stopped" by means of a chain stitch.
- These different types of stitches,in particular, must be made on different sewing machines,with different working passes,which,as it should be apparent,in addition to requiring long operating times, frequently provides not perfectly finished products, because of the difficulty of holding the several seaming lines in a properly aligned condition.
-
- The document GB-A-2 188 951 relates to a seaming machine having two needle bars which are parallel to one another and perform on a same fabric piece two separated seamings, parallel and with the same type of stitch. The machine disclosed in this document, accordingly, is not adapted to carry out two consecutive seamings of different types as those which can be performed by Applicant's seaming machine disclosed in the new main claim.
- The document DE-C-72258 discloses a seaming machine which is tilted on a side and enclosed in a casing in order to prevent possible lubricating materials from contacting the fabrics being seamed. This is a machine including a single needle bar and which, accordingly, can not perform simultaneously different seaming operations Practically, the machine of this document operates as a conventional seaming machine in order to perform a single type of stitch at a time.
- The document US-A-2 238 796 relates to a seaming machine which does not comprise any needle bar, since the needle of this machine is controlled by a lever and can perform exclusively a type of stitch. The seaming machine of this document has been designed for facilitating the operation of seaming the edge portions of the fabrics, in particular a tubular fabric piece. The machine disclosed in this patent can not perform simultaneously two types of seaming operations.
- The documents DE-O-3 407 271 and CH-O-665229 relate substantially to the same machine. In fact, the document CH-O-665229 is an improvement of the document DE-O-3407271. These documents relate to a seaming machine which can simultaneously perform seaming operations on the opposite edges of a half-finished product. Practically there is herein disclosed a seaming machine having two symmetrical and opposite seaming heads which perform separately two equal seams on opposite flaps of a same fabric piece. The type of machine disclosed in these patents is not adapted to perform simultaneously two different types of seams.
- The document FR-O-691277 relates to a seaming machine having two needle bars in a single block. Thus, the positions of the control mechanisms and several control members are fixed Because of this reason, this machine can perform exclusively a type of work. More specifically, in this machine, the control unit of the several control mechanism consists of a single shaft which drives a horizontal needle bar parallel to the shaft and a vertical needle bar perpendicular to the preceding one, operating the single provided crochet. Because of this reason, the seaming machine of this document can exclusively form a chain stitch with the horizontal needle, since this needle bar is parallel to the shaft driving it and since the crochet discloses during its stroke an ellipsoidal configuration perpendicular to the needle. The vertical needle bar, on the other hand, can form exclusively an ornamental stitch since in order to carry out a different type of stitch there are necessary two crochets. In fact, as is known, in forming an overlock stitch, the lower or bottom crochet is used for latching the yarn of the needle in the bottom portion of the seam, whereas the top crochet is used for latching the yarn of the bottom crochet so as to bring it under the needle on the top portion of the seam.
- Moreover, the machine disclosed in this FR-A-691277 document has a single drive for the fabric, perpendicular to the vertical needle bar and is arranged bridging the vertical needles. The horizontal needle bar does not include any drive for the fabric. None of these two needle bars is associated with a differential drive and accordingly the fabric, between the two needle bars, can not be spread or caused to shrink depending on the requirements.
- Accordingly, the main object of the present invention is to overcome the above mentioned drawbacks, by providing a sewing machine,for industrial use,which is specifically designed and arranged to perform,in a single pass, two or more seaming lines, either of the like or different type.
- Another object of the present invention is to provide such a sewing machine in which the fabric being sewn can also be fed or transported with different angles.
- Another object of the present invention is to provide such a sewing machine in which the fabric flaps or portions to be sewn can be oriented in all of the working orienting directions,independently from the fact that said fabric portions are in a loose condition or in a partially assembled condition.
- According to one aspect of the present invention,the above mentioned objects,as well as yet other objects,which will become more apparent hereinafter,are achieved by a sewing machine for industrial use, according to the main claim.
- Further characteristics and advantages of the industrial use sewing machine according to the present invention will become more apparent from the following detailed description of a preferred embodiment thereof,which is illustrated,by way of an indicative but not limitative example in the figures of the accompanying drawings,where:
- Figures 1,2 and 3 are respectively elevation, side and top plan schematic views illustrating the industrial use sewing machine according to the present invention;
- Figure 5 is a vertical cross- section view of the subject sewing machine,taken along the line V-V of figure 4;
- Figure 6 is a vertical cross-section view of the subject sewing machine,taken along the line VI-VI of figure 4;
- Figure 7 is a cross-sectional view of figure 6;
- Figure 8 shows an embodiment of the operating assembly for driving hook members included in the sewing machine;
and - Figure 9 shows several guide members for properly guiding edge portions of the cloth being sewn.
- With reference to the figures of the accompanying drawings,the sewing machine for industrial use according to the present invention comprises a supporting frame which has been specifically designed for supporting at least a
main shaft 1 which is driven by an electric motor (not shown). - On this
main shaft 1 there are keyed at least two pulleys,indicated respectively at 2 and 3,provided for transmitting a rotary movement to corresponding drivenshafts corresponding belts - Said driven shafts can also be driven by other driving sources,in a timed manner.
- The driven
shaft 4 supports afirst cam member 8 which,through a connecting rod 9,a ball joint 10 and a swingingpivot sleeve 11,drives alever 12 for controlling two ormore needle bars 13. - These needle bars can be arranged in different planes,with different angles( with a single and timed driving assembly) and can support,by means of
clamp members 14,corresponding orrespective needles 15 which can be selectively operatively driven. - On the driven
shaft 4 there is moreover keyed asecond cam member 16 which,through a connectingrod 17,aball joint 18,asleeve 19 and a swingingpivot pin 20 drives a trimming knife 21 supported on a curved supporting arm and the blade of which is indicated at 22. - On the driven
shaft 4 there is moreover keyed keyed athird cam member 23 which,through a connectingrod 24,aball joint 25 and asleeve 26,drives a first swingingpivot pin 27 which in turn,through a lever,drives asecond pivot pin 28. - These pivot pins,in particular,support respective
eccentric levers 29 and 30 which can rise gripper bearing sliders,respectively indicated at 31 and 32. - More specifically,the
gripper bearing slide 31 fixedly supports the gripper orclamp 33 which operates to feed the fabric to a needle or to the needles. - The
slider 32,in turn,supports the gripper orclamp 34 for driving the fabric beyond the first needle assembly. - In this connection it should be pointed out that the
gripper 33 can also be called "differential gripper" since it can carry out a different operating stroke from that of thegripper 34 which, in turn,can be called " stitching gripper". - On said driven
shaft 4 there is moreover mounted a stitchstretching cam member 35 which, through the connectingrod 36, theball joint 37 andsleeve 38 can drive a swingingpivot pin 39. - This pivot pin drives rotatively the
levers driving pins gripper bearing sliders eccentric levers 29 and 30. - It is to be added to the foregoing that the disclosed sewing machine also comprises means for orienting the fabric portions to be sewn in all of the directions,independently from the fact that said portions are loose or assembled.
- Thus,the timed operation of the mentioned grippers will provide a simultaneous and timed "transportation" of two or more seaming lines,owing to the different angles of the two or more seaming lines themselves.
- On the mentioned driven
shaft 4,moreover, (as shown in fig. 6) there is provided a cam member which,through a connecting rod 45 and aball joint 46 drives a sleeve 47. - This sleeve,as is shown,restrains a swinging
pivot pin 48 thereon there is keyed alever 49 bearing thelower hook member 50,which can perform a rotary movement. - On the same driven
shaft 4 there is moreover keyed afurther cam member 51 which,through a connecting rod and aball joint 53 andsleeve 54 swingably drives apivot pin 55. - With this latter there is rigidly coupled a
lever 56 to which there is articulated anarm 57 which in turn is slidingly coupled to aswinging ball joint 58 and supports,at the free end portion thereof, theupper hook member 59. - A suitable protecting
casing 60 is moreover provided,which advantageously also operates as an operating table.
Claims (10)
- A sewing machine for industrial use, characterized in that said sewing machine comprises a main driving shaft (1), driving at least two driven shafts (4, 5), rotatively driven with timed speeds, on one of said driven shafts (40) at least a cam member (8, 16, 23) being keyed which drives at least a needle bar (13), a top hook (59) and a bottom hook (50) and a first gripper (33) and a second gripper (34) for advancing a fabric to be seamed, said first gripper (33) being arranged before the working region of the needle or needles (15) of said needle bar(s) (13) and said second gripper (34) being arranged after said working region of the needle or needles (15) of said needle bar(s) (13), said first and second grippers (33, 34) being driven with a different stroke for a different transport of said fabric upstream of said working region and downstream of said working region of said needle or needles (15) of said needle bar or bars (13).
- A sewing machine according to Claim 1, characterized in that on said main driving shaft (1) there are keyed at least two pulleys (2, 3) rotatively driving said driven shafts (4, 5) through driving belts (6, 7).
- A sewing machine according to Claim 2, characterized in that said one (4) of said driven shafts supports a first cam member (8) which, through a connecting rod (9), a ball joint (10) and a sleeve (11) with a swinging pivot pin, drives a lever (12) in turn driving said needle bars (13), said needle bars (13) being arranged in different planes and with different angles and bearing, through clamp members (14), said selectively controlled needles (15).
- A sewing machine according to Claim 3, characterized in that on said one driven shaft (4) there is keyed a second cam member (16) which, through a respective connecting rod (17), a ball joint (18), a sleeve (19) and a swinging pin (20) drives a trimming knife (21) supported by a supporting arm.
- A sewing machine according to Claim 3, characterized in that on said one driven shaft (4) there is keyed a third cam member (23) which, through a respective connecting rod (24), ball joint (25) and sleeve (26) drives a first swinging pin (27) connected, through a lever, to a second swinging pin (28), said swinging pins (27, 28) being respectively connected to two sliders (31, 32) bearing respectively said first gripper (33) and second gripper (34).
- A sewing machine according to Claim 5, characterized in that said gripper (33) supported on one (31) of said sliders (31, 33) is a fabric feeding gripper, whereas said other gripper (34) supported on the other (33) of said sliders (31, 33) is a gripper (34) for conveying said fabric beyond said needles (15).
- A sewing machine according to Claim 3, characterized in that on said one driven shaft (4) there is moreover mounted a stitch stretching cam member (35) which, through a connecting rod (36), a ball joint (37) and a sleeve (38) drives a further swinging pin (39) in turn swingably driving two levers (40, 41) having driving pins (42, 43) which drive said gripper sliders (31, 32) so as to cause said sliders (31, 32) to contact said fabric and move back to a lowered position in cooperation with said cam members.
- A sewing machine according to Claims 1 and 3, characterized in that on said one driven shaft (4) there is moreover provided a further driving cam member (44) which, through a respective connecting rod (45),and a ball joint (46) and a sleeve (47) supporting a pivot pin (48), drives a lever (49) supporting rotatively said bottom hook (50).
- A sewing machine according to Claims 1 and 3, characterized in that on said one driven shaft (4) there is keyed yet a further cam member (51) which, through a respective coupling rod (52), ball joint (53) and sleeve (54), drives yet another swinging pin (55) therewith a lever (56) is rigid, said lever rotatively supporting an arm (57) slidingly coupled to a swinging ball joint (58) and supporting, at a free end portion thereof, said top hook (59).
- A sewing machine according to Claim 1, said sewing machine being so designed and arranged as to simultaneously transport two or more seaming lines, with different mutual transport angles.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2149488 | 1988-07-26 | ||
IT8821494A IT1226311B (en) | 1988-07-26 | 1988-07-26 | SEWING MACHINE, FOR INDUSTRIAL USE, WITH A PERFECT STRUCTURE, SUITABLE TO ALLOW THE SIMULTANEOUS EXECUTION OF SEVERAL SEWINGS OF A DIFFERENTIATED TYPE |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0353208A1 EP0353208A1 (en) | 1990-01-31 |
EP0353208B1 true EP0353208B1 (en) | 1995-02-08 |
Family
ID=11182655
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89830344A Expired - Lifetime EP0353208B1 (en) | 1988-07-26 | 1989-07-25 | Industrial sewing machine for simultaneously performing a plurality of improved seaming lines |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0353208B1 (en) |
JP (1) | JPH0280081A (en) |
CN (1) | CN1021921C (en) |
AT (1) | ATE118256T1 (en) |
DE (1) | DE68921026T2 (en) |
ES (1) | ES2068916T3 (en) |
IT (1) | IT1226311B (en) |
RU (1) | RU2023778C1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1246756B (en) * | 1990-12-28 | 1994-11-26 | Macpi Pressing Div | SEWING MACHINE, FOR INDUSTRIAL USE, WITH A PERFECT STRUCTURE, SUITABLE TO ALLOW THE SUMULTANEOUS EXECUTION OF SEVERAL SEAMS, OF A DIFFERENTIATED TYPE. |
DE4325387A1 (en) * | 1992-08-07 | 1994-02-10 | Union Special Corp | Overlock stitch sewing device |
IT1391048B1 (en) * | 2008-07-04 | 2011-10-27 | Vi Be Mac Spa | SEWING MACHINE |
CN102677408A (en) * | 2012-06-04 | 2012-09-19 | 沈标 | Automatic liner coating and lead coating machine for bath curtains and window curtains |
JP6343185B2 (en) * | 2014-06-25 | 2018-06-13 | ペガサスミシン製造株式会社 | Delivery arm type sewing machine |
TWI737452B (en) * | 2020-08-17 | 2021-08-21 | 源甡股份有限公司 | Method of seaming clothes of protective clothing |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE72258C (en) * | W. H. H. TRACY in 3229 Sixth Avenue, Troy, Renseilaer County, Staat New-York, J. A. SCRIVEN in New-York, 67 West 96 th Street und R. Ch. TOUSEY in Long Hill, Fairfield County, Connecticut, V. St. A | Sewing machine with working elements enclosed in a housing | ||
FR691277A (en) * | 1930-03-06 | 1930-10-20 | Lewis Invisible Stitch Machine | Sewing machine |
US2238796A (en) * | 1939-06-10 | 1941-04-15 | Singer Mfg Co | Overedge sewing machine |
IT1160741B (en) * | 1983-03-18 | 1987-03-11 | Rockwell Rimoldi Spa | SEWING MACHINE TO PERFORM CONTEMPORARY SEAMS ON TWO OPPOSITE EDGES OF A GARMENT TO BE PACKAGED |
IT8521675V0 (en) * | 1985-04-30 | 1985-04-30 | Rockwell Rimoldi Spa | SEWING MACHINE SUITABLE TO PERFORM SEAMS SIMULTANEOUSLY ON THE OPPOSITE EDGES OF A SEMI-FINISHED PRODUCT. |
IT207473Z2 (en) * | 1986-04-09 | 1988-01-18 | Vibemac Srl | DEVICE APPLICABLE ON SNAP BENDING MACHINES, SUITABLE TO ENABLE DOUBLE SIMULTANEOUS SEWING. |
-
1988
- 1988-07-26 IT IT8821494A patent/IT1226311B/en active
-
1989
- 1989-07-25 ES ES89830344T patent/ES2068916T3/en not_active Expired - Lifetime
- 1989-07-25 RU SU894614682A patent/RU2023778C1/en active
- 1989-07-25 EP EP89830344A patent/EP0353208B1/en not_active Expired - Lifetime
- 1989-07-25 AT AT89830344T patent/ATE118256T1/en not_active IP Right Cessation
- 1989-07-25 DE DE68921026T patent/DE68921026T2/en not_active Expired - Fee Related
- 1989-07-26 CN CN89106101.0A patent/CN1021921C/en not_active Expired - Fee Related
- 1989-07-26 JP JP1193792A patent/JPH0280081A/en active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0353208A1 (en) | 1990-01-31 |
CN1021921C (en) | 1993-08-25 |
IT1226311B (en) | 1990-12-27 |
CN1039857A (en) | 1990-02-21 |
RU2023778C1 (en) | 1994-11-30 |
JPH0280081A (en) | 1990-03-20 |
DE68921026T2 (en) | 1995-06-01 |
IT8821494A0 (en) | 1988-07-26 |
ES2068916T3 (en) | 1995-05-01 |
ATE118256T1 (en) | 1995-02-15 |
DE68921026D1 (en) | 1995-03-23 |
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