CA2029193A1 - Devicer for spreading of component webs - Google Patents
Devicer for spreading of component websInfo
- Publication number
- CA2029193A1 CA2029193A1 CA 2029193 CA2029193A CA2029193A1 CA 2029193 A1 CA2029193 A1 CA 2029193A1 CA 2029193 CA2029193 CA 2029193 CA 2029193 A CA2029193 A CA 2029193A CA 2029193 A1 CA2029193 A1 CA 2029193A1
- Authority
- CA
- Canada
- Prior art keywords
- web
- rolls
- spreading
- component webs
- component
- 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.)
- Abandoned
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H23/00—Registering, tensioning, smoothing or guiding webs
- B65H23/02—Registering, tensioning, smoothing or guiding webs transversely
- B65H23/022—Registering, tensioning, smoothing or guiding webs transversely by tentering devices
- B65H23/025—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers
- B65H23/0258—Registering, tensioning, smoothing or guiding webs transversely by tentering devices by rollers with a bowed axis
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/30—Orientation, displacement, position of the handled material
- B65H2301/35—Spacing
- B65H2301/351—Spacing parallel to the direction of displacement
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/41—Winding, unwinding
- B65H2301/414—Winding
- B65H2301/4148—Winding slitting
Abstract
APPARATUS FOR THE SPREADING OF COMPONENT WEBS
ABSTRACT OF THE DISCLOSURE
The invention concerns an apparatus for spreading of component webs (W1, W2...Wn-1, Wn), comprising a first, bowed, revolving roll (10) fitted at one side of the web (W) and a second, bowed, revolving roll (11) fitted at the opposite side of the web (W), as well as a swing mechanism (15, 16, 17), which is fitted to act upon these rolls (10, 11) so as to alter the deflection angles (b1, b2) of the component webs (W1, W2...Wn-1, Wn) and thereby to produce the desired spreading (C) of the component webs (W1, W2...Wn-1, Wn). The apparatus is provided with a regulation mechanism (12, 13), which is fitted to correct the directional angles (g1, g2) between these rolls (10, 11) and the web (W) to the desired values with all values of the deflection angle (b1, b2).
ABSTRACT OF THE DISCLOSURE
The invention concerns an apparatus for spreading of component webs (W1, W2...Wn-1, Wn), comprising a first, bowed, revolving roll (10) fitted at one side of the web (W) and a second, bowed, revolving roll (11) fitted at the opposite side of the web (W), as well as a swing mechanism (15, 16, 17), which is fitted to act upon these rolls (10, 11) so as to alter the deflection angles (b1, b2) of the component webs (W1, W2...Wn-1, Wn) and thereby to produce the desired spreading (C) of the component webs (W1, W2...Wn-1, Wn). The apparatus is provided with a regulation mechanism (12, 13), which is fitted to correct the directional angles (g1, g2) between these rolls (10, 11) and the web (W) to the desired values with all values of the deflection angle (b1, b2).
Description
~0~9193 APPARATU8 FOR THE 8PREADING OF CONPO~ENT R~B8 BAC~GROUND OF T~æ INVENTION
The invention concerns an apparatus for spreading of component webs, comprising a first, bowed, revolving roll fitted at one side of the web and a second, bowed, revol~ing roll fitted at the opposite side of the web, as well as a swing mechanism, which is fitted to act upon these rolls so as to alter the deflection angles of the component webs and thereby to reduce the desired spreading of the ~omponent webs.
By means of spreading of the component webs, attempts are made to separate the individual strips slit, e.g., in a slitter in the lateral direction sufficiently far from each other to ensure detaching of the reels from each other. In the spreading of the component webs, the objective is to perform the lateral shifting of the web so that lateral gliding of the web in the spreader member is avoided, by guiding the web by means of a first spreader member by deflecting the web towards the side and by means of a second spreader member so that its original running direction is restored. In the prior art, as spreader members, for example, rods, beams or revolving roll mantles mounted on an axle bent into curved form have been employed. A revolving roll mantle may be composed, e.g., of rigid mantle units, or it may be continuous and elastic. The mantle units may also be separate. In a spreader with a revolving mantle, the problem is, however, often encountered that the direction of movement of the web and the vector of rotation that represents the rolling of the revolving roll mantle are, at least at some location on the mantle, placed obliquely to each other. In such a case, the web is 91~3 affected by a force component which attempts to shift the web by sliding on the roll mantle in the axial direction corresponding to the longitudinal direction of the roll mantle.
As is well known, the extent of the separation gap between the component webs is adjusted either by altering the curve radius, by altering the gap between the rolls or the gap between the spreader members, or by altering the deflection angle of the web. If the size of the spreading gap is adjusted by altering the distance between the spreader members, this affects the size of the machine concerned, and thereby the use of this possibility of regulation is complex. ~f regulation based on alteration of the curve radius is used in the spreading of the component webs, the use of this mode of regulation requires very high precision, for even a little change in the curve radius has a strong effect on the distance between the component webs.
The commonest mode of adjusting the magnitude of the separation gaps between the component webs is to perform it by adjusting the angle of deflection of the web across the spreader members. In such a case, the web makes a steeper or less steep angle when it passes over the spreader members, whereby the distance between the component webs is changed.
When the angles of deflection of the web at the spreader devices are altered, the directional angles of the arcs relative to the web are also altered. A change in the directional angle of an arc causes a lateral component of rolling in the web, which causes problems, because the slide friction force between the web and the spreader rolls causes disturbance in the spreading. As is well known, the directional angles have been adjusted manually, which is slow and difficult.
~0291 ~
An object of the present invnetion is to provide an apparatus for spreading of component webs wherein the factors explained above do not cause problems, because the correcting of the directional angle is mechanically positively controlled.
In view of achieving the objects stated above and those that will be explained hereinafter, the apparatus in accordance with the invention is mainly characterized in that the device is provided with a regulation mechanism, which is fitted to correct the directional angle between these rolls and the web to the desired value with all values of the deflection angle.
By means of the apparatus in accordance with the invention, the directional angles between the arcs in the spreader members and the web are automaticaily regulated to the correct values when the deflection angles of the web are adjusted as the amount of spreading is being increased or reduced.
BRI~F DE8CRIPTION OF T~F DRA~ING8 In the following, the device in accordance with the invention will be described in more detail with reference to the Figures in the acco~panying drawings.
Figure 1 is a schematical illustration of the deflection spreader as viewed from below.
Figure 2 is a schematical side view of the deflection spreader and of its control qualities.
Figure 3 is a schematical illustration of a device in accordance with the invention.
D~C~IPTION OF T~F PRFF~RRFD RNBODI~æNT~
In Fig. 1 it is shown schematically how the slit component webs Wl, W2~..Wn_l, Wn arrive at the first spreader roll 10 202919~
in a direction in which the mantle of the roll 10 rolls directly in the direction P of running of the web W. The component webs Wl...Wn are turned around the arc 10' of the roll lO (Fig. 2) in the direction R1o of rolling of the first roll 10 being at the same time deflected outwards, each component web Wl...Wn in its own direction Pl, P2...Pn. Gaps C are opened between the component webs Wl...Wn. Each component web Wl...Wn arrives at the second roll 11 in the direction Rll of rolling of the mantle, being turned along with the mantle to be original straight direction P of running. The component webs W1...Wn are detached from the second spreader roll ll, and there are the necessary separation gaps C
between the component webs Wl...Wn.
Fig. 2 is a schematical illustration of ~uantities that affect the deflection spreading. In the Figure, the web is denoted with the reference W, the web running below the first spreader roll 10 while its arc 10' spreads the web into component webs Wl...Wn. Hereupon the component webs Wl...Wn run over the second spreader roll 11, whose arc 11' turns the component webs Wl...Wn into their original direction P of running (Fig. 1). In the Figure, the curve radii of th spreading arcs 10', 11' are denoted with the references rl, r2. The distance between the spreader rolls 10, ll is denoted with the reference l. The deflection angles of the web W across the rolls 10, ll are denoted with the reference bl, b2, and the directional angles of the spreading arcs lO', ll' relative to the web W are denoted with gl and g2.
Fig. 3 is a schematical illustration of an exemplifying embodiment of the invention as applied in a carrier-drum slitter 20.
The web W is introduced in a ~nown manner, guided by the guide rolls 31, 32, 33, into the device in accordance with the invention, from 2Q29~ 93 which the component webs are passed, in this embodiment, into a carrier-drum slitter 20, by the intermediate of a first roll 21 and a second roll 22, to be wound into a roll 23. In this exemplifying embodiment, the device for spreading of the component webs W1...Wn consists of two bowed revolving rolls 10, ll and of a swing mechanism 15, 16, 17. By means of a regulation mechanism 12, 13 the directional angles gl, g2 (Fig. 2) of the revolving, bowed rolls 10, 11 are corrected to the desired values when the spreading is adjusted by means of the swing mechanism 15, 16, 17. The adjustment of the spreading or separation takes place by means of a known technique so that the piece 15 is turned by means of a jack 16 around an articulated joint 17, whereby the deflection angles bl, b2 of the paper web W across the rolls 10, 11 become larger or smaller.
As is shown in Figs. 1, 2 and 3, the device comprises a first, bowed, revolving roll 10 fitted at one side of the web W and a second, bowed, revolving roll 11 fit~ed at the opposite side of the web W. The device further comprises a swing mechanism 15, 16, 17, by whose means the rolls 10, 11 are affected to alter their deflection angles b1, b2 and thereby to provide the desired spreading distance C for the component webs Wl...Wn. The device is provided with a regulation mechanism 12, 13 which corrects the directional angles g1, g2 of the rolls 10, 11 and of the web W to correct values. This regulation mechanism 12, 13 may be composed, e.gO, of articulation arms 12, 13, as is shown in Fig. 3. The directional angles gl, g2 are adjusted by means of the articulation arms 12, 13 so that the directional angles gl, g2 f the rolls lO, 11 relative to the web W are always invariable, preferably 90. The rolls 10, 11 that are used as spreader members 28~1 93 \
may be fragmentary rolls or continuous, bowed rolls, or the equivalent.
The device in accordance with the invention is suitable for use in the spreading of component webs of a variety of web materials. The web material may consist of plastic film, fabric, paper, metal sheet, cardboard, or of equivalent material~
Above, the invention has been described with reference to one advantageous exemplifying embodiment only. This is, however, by no means supposed to confine the invention to this exemplifying embodiment alone, but many variations and modifications are possible within the scope of the inventive idea defined in the following patent claims.
The invention concerns an apparatus for spreading of component webs, comprising a first, bowed, revolving roll fitted at one side of the web and a second, bowed, revol~ing roll fitted at the opposite side of the web, as well as a swing mechanism, which is fitted to act upon these rolls so as to alter the deflection angles of the component webs and thereby to reduce the desired spreading of the ~omponent webs.
By means of spreading of the component webs, attempts are made to separate the individual strips slit, e.g., in a slitter in the lateral direction sufficiently far from each other to ensure detaching of the reels from each other. In the spreading of the component webs, the objective is to perform the lateral shifting of the web so that lateral gliding of the web in the spreader member is avoided, by guiding the web by means of a first spreader member by deflecting the web towards the side and by means of a second spreader member so that its original running direction is restored. In the prior art, as spreader members, for example, rods, beams or revolving roll mantles mounted on an axle bent into curved form have been employed. A revolving roll mantle may be composed, e.g., of rigid mantle units, or it may be continuous and elastic. The mantle units may also be separate. In a spreader with a revolving mantle, the problem is, however, often encountered that the direction of movement of the web and the vector of rotation that represents the rolling of the revolving roll mantle are, at least at some location on the mantle, placed obliquely to each other. In such a case, the web is 91~3 affected by a force component which attempts to shift the web by sliding on the roll mantle in the axial direction corresponding to the longitudinal direction of the roll mantle.
As is well known, the extent of the separation gap between the component webs is adjusted either by altering the curve radius, by altering the gap between the rolls or the gap between the spreader members, or by altering the deflection angle of the web. If the size of the spreading gap is adjusted by altering the distance between the spreader members, this affects the size of the machine concerned, and thereby the use of this possibility of regulation is complex. ~f regulation based on alteration of the curve radius is used in the spreading of the component webs, the use of this mode of regulation requires very high precision, for even a little change in the curve radius has a strong effect on the distance between the component webs.
The commonest mode of adjusting the magnitude of the separation gaps between the component webs is to perform it by adjusting the angle of deflection of the web across the spreader members. In such a case, the web makes a steeper or less steep angle when it passes over the spreader members, whereby the distance between the component webs is changed.
When the angles of deflection of the web at the spreader devices are altered, the directional angles of the arcs relative to the web are also altered. A change in the directional angle of an arc causes a lateral component of rolling in the web, which causes problems, because the slide friction force between the web and the spreader rolls causes disturbance in the spreading. As is well known, the directional angles have been adjusted manually, which is slow and difficult.
~0291 ~
An object of the present invnetion is to provide an apparatus for spreading of component webs wherein the factors explained above do not cause problems, because the correcting of the directional angle is mechanically positively controlled.
In view of achieving the objects stated above and those that will be explained hereinafter, the apparatus in accordance with the invention is mainly characterized in that the device is provided with a regulation mechanism, which is fitted to correct the directional angle between these rolls and the web to the desired value with all values of the deflection angle.
By means of the apparatus in accordance with the invention, the directional angles between the arcs in the spreader members and the web are automaticaily regulated to the correct values when the deflection angles of the web are adjusted as the amount of spreading is being increased or reduced.
BRI~F DE8CRIPTION OF T~F DRA~ING8 In the following, the device in accordance with the invention will be described in more detail with reference to the Figures in the acco~panying drawings.
Figure 1 is a schematical illustration of the deflection spreader as viewed from below.
Figure 2 is a schematical side view of the deflection spreader and of its control qualities.
Figure 3 is a schematical illustration of a device in accordance with the invention.
D~C~IPTION OF T~F PRFF~RRFD RNBODI~æNT~
In Fig. 1 it is shown schematically how the slit component webs Wl, W2~..Wn_l, Wn arrive at the first spreader roll 10 202919~
in a direction in which the mantle of the roll 10 rolls directly in the direction P of running of the web W. The component webs Wl...Wn are turned around the arc 10' of the roll lO (Fig. 2) in the direction R1o of rolling of the first roll 10 being at the same time deflected outwards, each component web Wl...Wn in its own direction Pl, P2...Pn. Gaps C are opened between the component webs Wl...Wn. Each component web Wl...Wn arrives at the second roll 11 in the direction Rll of rolling of the mantle, being turned along with the mantle to be original straight direction P of running. The component webs W1...Wn are detached from the second spreader roll ll, and there are the necessary separation gaps C
between the component webs Wl...Wn.
Fig. 2 is a schematical illustration of ~uantities that affect the deflection spreading. In the Figure, the web is denoted with the reference W, the web running below the first spreader roll 10 while its arc 10' spreads the web into component webs Wl...Wn. Hereupon the component webs Wl...Wn run over the second spreader roll 11, whose arc 11' turns the component webs Wl...Wn into their original direction P of running (Fig. 1). In the Figure, the curve radii of th spreading arcs 10', 11' are denoted with the references rl, r2. The distance between the spreader rolls 10, ll is denoted with the reference l. The deflection angles of the web W across the rolls 10, ll are denoted with the reference bl, b2, and the directional angles of the spreading arcs lO', ll' relative to the web W are denoted with gl and g2.
Fig. 3 is a schematical illustration of an exemplifying embodiment of the invention as applied in a carrier-drum slitter 20.
The web W is introduced in a ~nown manner, guided by the guide rolls 31, 32, 33, into the device in accordance with the invention, from 2Q29~ 93 which the component webs are passed, in this embodiment, into a carrier-drum slitter 20, by the intermediate of a first roll 21 and a second roll 22, to be wound into a roll 23. In this exemplifying embodiment, the device for spreading of the component webs W1...Wn consists of two bowed revolving rolls 10, ll and of a swing mechanism 15, 16, 17. By means of a regulation mechanism 12, 13 the directional angles gl, g2 (Fig. 2) of the revolving, bowed rolls 10, 11 are corrected to the desired values when the spreading is adjusted by means of the swing mechanism 15, 16, 17. The adjustment of the spreading or separation takes place by means of a known technique so that the piece 15 is turned by means of a jack 16 around an articulated joint 17, whereby the deflection angles bl, b2 of the paper web W across the rolls 10, 11 become larger or smaller.
As is shown in Figs. 1, 2 and 3, the device comprises a first, bowed, revolving roll 10 fitted at one side of the web W and a second, bowed, revolving roll 11 fit~ed at the opposite side of the web W. The device further comprises a swing mechanism 15, 16, 17, by whose means the rolls 10, 11 are affected to alter their deflection angles b1, b2 and thereby to provide the desired spreading distance C for the component webs Wl...Wn. The device is provided with a regulation mechanism 12, 13 which corrects the directional angles g1, g2 of the rolls 10, 11 and of the web W to correct values. This regulation mechanism 12, 13 may be composed, e.gO, of articulation arms 12, 13, as is shown in Fig. 3. The directional angles gl, g2 are adjusted by means of the articulation arms 12, 13 so that the directional angles gl, g2 f the rolls lO, 11 relative to the web W are always invariable, preferably 90. The rolls 10, 11 that are used as spreader members 28~1 93 \
may be fragmentary rolls or continuous, bowed rolls, or the equivalent.
The device in accordance with the invention is suitable for use in the spreading of component webs of a variety of web materials. The web material may consist of plastic film, fabric, paper, metal sheet, cardboard, or of equivalent material~
Above, the invention has been described with reference to one advantageous exemplifying embodiment only. This is, however, by no means supposed to confine the invention to this exemplifying embodiment alone, but many variations and modifications are possible within the scope of the inventive idea defined in the following patent claims.
Claims (2)
1. An apparatus for the spreading of component webs comprising;
a first, bowed revolving roll situated at one side of said component webs;
a second, bowed revolving roll situated at the other side of said component webs;
a swing mechanism connected to said first and second rolls and operating to alter respective deflection angles of said first and second rolls to produce a desired spreading distance between adjacent ones of said component webs; and a regulation mechanism connected to said first and second rolls and operating to adjust directional angles between said rolls and said web to a desired constant value.
a first, bowed revolving roll situated at one side of said component webs;
a second, bowed revolving roll situated at the other side of said component webs;
a swing mechanism connected to said first and second rolls and operating to alter respective deflection angles of said first and second rolls to produce a desired spreading distance between adjacent ones of said component webs; and a regulation mechanism connected to said first and second rolls and operating to adjust directional angles between said rolls and said web to a desired constant value.
2. The apparatus of claim 1, wherein said regulation mechanism comprises a first articulation arm connected to said first and second rolls and a second articulation arm connected to said first articulation arm and to said swing mechanism.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI895581 | 1989-11-22 | ||
| FI895581A FI90523C (en) | 1989-11-22 | 1989-11-22 | Device for separating the partial webs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2029193A1 true CA2029193A1 (en) | 1991-05-23 |
Family
ID=8529399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2029193 Abandoned CA2029193A1 (en) | 1989-11-22 | 1990-11-02 | Devicer for spreading of component webs |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0431275A3 (en) |
| JP (1) | JPH03186555A (en) |
| CA (1) | CA2029193A1 (en) |
| FI (1) | FI90523C (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5185052A (en) * | 1990-06-06 | 1993-02-09 | The Procter & Gamble Company | High speed pleating apparatus |
| DE9111448U1 (en) * | 1991-09-14 | 1993-01-28 | Beloit Corp., Beloit, Wis., Us | |
| US5533659A (en) * | 1991-09-14 | 1996-07-09 | Beloit Technologies, Inc. | Dust removal system |
| AT397953B (en) * | 1991-12-04 | 1994-08-25 | Pfauser Alexander | Winding machine and winding method for web-like material, in particular for bandages |
| DE29509516U1 (en) * | 1995-06-14 | 1996-10-17 | Beloit Technologies Inc | Separating device for winding devices for material webs that are longitudinally divided into several partial webs |
| US6082660A (en) * | 1996-06-14 | 2000-07-04 | Beloit Technologies, Inc. | Separating device for winding devices for material webs, longitudinally divided into several partial webs |
| DE19743070A1 (en) * | 1997-09-30 | 1999-04-01 | Jagenberg Papiertech Gmbh | Carrier roll winding machine |
| DE102005057827A1 (en) * | 2005-12-03 | 2007-06-06 | Voith Patent Gmbh | Reel winding device |
| FI121306B (en) * | 2008-03-03 | 2010-09-30 | Metso Paper Inc | Device for separation of subways |
| ES2449291T3 (en) | 2010-11-01 | 2014-03-19 | Dsm Ip Assets B.V. | Apparatus and method of manufacturing by addition comprising an alternative motion sheet guide system |
| EP2703326B1 (en) | 2012-08-29 | 2020-07-01 | Valmet Technologies, Inc. | Method for separating partial webs in a slitter winder |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2007569B1 (en) * | 1970-02-19 | 1971-04-22 | Erwin Kampf Maschinenfabrik | Roller mill for pulling apart strips |
| US4410122A (en) * | 1981-06-01 | 1983-10-18 | Beloit Corporation | Device for widthwise control of web material and method |
| JPS5974848A (en) * | 1982-10-23 | 1984-04-27 | Konishiroku Photo Ind Co Ltd | Separated transport method of band type material |
| FI69440C (en) * | 1983-07-22 | 1986-02-10 | Waertsilae Oy Ab | ANORDING FROM THE BANK |
| JPH0658522B2 (en) * | 1986-08-13 | 1994-08-03 | 富士写真フイルム株式会社 | Color photographic processing composition |
-
1989
- 1989-11-22 FI FI895581A patent/FI90523C/en not_active IP Right Cessation
-
1990
- 1990-10-02 EP EP19900118894 patent/EP0431275A3/en not_active Withdrawn
- 1990-11-02 CA CA 2029193 patent/CA2029193A1/en not_active Abandoned
- 1990-11-22 JP JP32055290A patent/JPH03186555A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FI895581A (en) | 1991-05-23 |
| EP0431275A3 (en) | 1991-10-30 |
| JPH03186555A (en) | 1991-08-14 |
| FI90523C (en) | 1994-02-25 |
| FI90523B (en) | 1993-11-15 |
| EP0431275A2 (en) | 1991-06-12 |
| FI895581A0 (en) | 1989-11-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |