DE3741792A1 - Method for reducing the programme cycle times, especially in domestic washing machines - Google Patents
Method for reducing the programme cycle times, especially in domestic washing machinesInfo
- Publication number
- DE3741792A1 DE3741792A1 DE19873741792 DE3741792A DE3741792A1 DE 3741792 A1 DE3741792 A1 DE 3741792A1 DE 19873741792 DE19873741792 DE 19873741792 DE 3741792 A DE3741792 A DE 3741792A DE 3741792 A1 DE3741792 A1 DE 3741792A1
- Authority
- DE
- Germany
- Prior art keywords
- laundry
- control unit
- electronic
- program
- correction
- 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.)
- Withdrawn
Links
Classifications
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/48—Preventing or reducing imbalance or noise
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F33/00—Control of operations performed in washing machines or washer-dryers
- D06F33/30—Control of washing machines characterised by the purpose or target of the control
- D06F33/44—Control of the operating time, e.g. reduction of overall operating time
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2101/02—Characteristics of laundry or load
- D06F2101/04—Quantity, e.g. weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2101/02—Characteristics of laundry or load
- D06F2101/06—Type or material
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2101/00—User input for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2101/10—Spin speed
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/04—Quantity, e.g. weight or variation of weight
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
- D06F2103/02—Characteristics of laundry or load
- D06F2103/06—Type or material
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F2105/00—Systems or parameters controlled or affected by the control systems of washing machines, washer-dryers or laundry dryers
- D06F2105/56—Remaining operation time; Remaining operational cycles
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/28—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress
- D06F34/30—Arrangements for program selection, e.g. control panels therefor; Arrangements for indicating program parameters, e.g. the selected program or its progress characterised by mechanical features, e.g. buttons or rotary dials
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Control Of Washing Machine And Dryer (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Reduzierung der Programmablaufzeiten, insbesondere bei Haushaltwaschmaschinen nach dem Oberbegriff des Anspruchs 1.The invention relates to a method for reducing the Program execution times, especially at Household washing machines according to the preamble of the claim 1.
Am Markt befindliche AEG-Waschvollautomaten, beispielsweise der Typenreihe "Öko-Lavamat" besitzen vom Benutzer anwählbare elektronische Programmsteuereinheiten mit Mikroprozessoren. Mit Hilfe eines Programmwählers können vom Kunden verschiedene Festprogramme eingestellt werden. Außerdem besitzen die Waschvollautomaten Eingabefelder mit Wäscheart-Tasten sowie 1/2-Spartasten für kleinere Füllmengen. Weiterhin sind verschiedene Schleuderwähltasten für intensiveres oder schwächeres Schleudern vorhanden. Dabei überwacht eine sogenannte UKS-Electronic, ein elektronisches Unwuchtkontrollsystem, jeden Schleudervorgang. Hierbei wird bekannterweise mit Hilfe eines Tachogenerators die Größe der Wäscheunwucht während des Sanftanlaufs, beispielsweise über Antriebsmotor- Drehzahl-Istwertschwankungen gemessen und bei ungünstigen Unwuchtverhältnissen das Anschleudern unterbrochen und die Wäsche , in einer Waschgut-Auflockerungsphase behandelt. D. h. die Wäschestücke werden durch Wäschekorrekturzyklen mit Hilfe von Reversierbewegungen der Wäschetrommel aufgelockert und neu verteilt. Erst dann wird bis zu der vom Kunden vorgewählten Schleuder-Nenndrehzahl hochgeschleudert.AEG fully automatic washing machines on the market, for example of the type series "Öko-Lavamat" owned by the user selectable electronic program control units with Microprocessors. With the help of a program selector various fixed programs can be set by the customer. The washing machines also have input fields Laundry type buttons and 1/2 economy buttons for smaller ones Filling quantities. There are also various spin dial buttons available for more intensive or weaker spinning. A so-called UKS-Electronic monitors a electronic unbalance control system, everyone Spin cycle. This is known to help of a tachometer generator the size of the laundry imbalance during soft start, for example via drive motor Actual speed fluctuations measured and in the case of unfavorable Unbalance the spinning is interrupted and the Laundry treated in a laundry loosening phase. D. H. the items of laundry are replaced by laundry correction cycles With the help of reversing movements of the laundry drum loosened up and redistributed. Only then will the Nominal spin speed selected by the customer flung up.
Dabei ist jedoch die in der elektronischen Programmsteuereinheit abgespeicherte Anzahl der Wäschekorrekturzyklen bzw. Wäschetrommelreversierbewegungen für das ablaufende Schleuderprogramm eine konstant vorgegebene Größe. D. h. unabhängig von der am Eingabefeld vorgewählten Wäscheart und Menge oder dem vorgewählten Waschprogramm dauert das Wäscheauflockern und Neuverteilen vor dem Hochschleudern immer gleich und oft unnötig lange.In this case, however, the number of laundry correction cycles or laundry drum reversing movements stored in the electronic program control unit is a constantly predetermined variable for the running spin program. D. H. Regardless of the type and amount of laundry selected in the input field or the selected washing program, the loosening and redistribution of laundry before the spin-up always takes the same and often unnecessarily long.
Der Erfindung liegt die Aufgabe zugrunde, den vorher erwähnten Nachteil des Standes der Technik durch entsprechende Verbesserungen wirksam zu vermeiden.The invention has for its object the previously mentioned disadvantage of the prior art to avoid corresponding improvements effectively.
Diese Aufgabe, gemäß der Erfindung, wird durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst. Weitere, vorteilhafte Ausgestaltungen der Erfindung sind den Unteransprüchen zu entnehmen.This object, according to the invention, is achieved by the characterizing features of claim 1 solved. Further, advantageous embodiments of the invention are See subclaims.
Die mit der Erfindung erzielbaren Vorteile bestehen insbesondere darin, daß unnötige Programmzeitverlängerungen durch eine unnötig lange Waschgut-Auflockerungsphase vor dem eigentlichen Hochschleudern reduziert und damit die gesamte Programmablaufzeit verkürzt wird.The advantages that can be achieved with the invention exist especially in that unnecessary program time extensions through an unnecessarily long loosening phase the actual blasting and thus the total program execution time is reduced.
Ein Ausführungsbeispiel der Erfindung wird anhand eines Diagramms im folgenden näher beschrieben.An embodiment of the invention is based on a Diagram described in more detail below.
Das Diagramm zeigt eine Drehzahl-Zeitkennlinie eines Waschvollautomaten zu Beginn eines Schleuderprogrammablaufs. The diagram shows a speed-time characteristic of a Fully automatic washing machines at the beginning of a Spin program sequence.
Wie eingangs erwähnt wird während der Sanftanlaufphase zu Beginn des Schleuderprogramms die Wäscheunwucht während zweier bestimmter Wäschetrommeldrehzahlen ermittelt. Liegt sie oberhalb einer minimalen Unwuchtgrenze, wird das Hochschleudern abgebrochen und die Waschgut- Auflockerungsphase mit einer Anzahl von Wäschekorrekturzyklen eingeleitet. Nach Abschluß der Waschgut-Auflockerungsphase erfolgt eine Neuverteilung der Wäsche und das Hochschleudern auf die vorgewählte Schleuder-Nenndrehzahl.As mentioned at the beginning, during the soft start phase Start the spin program while the laundry is unbalanced determined two specific drum speeds. Lies above a minimum unbalance limit, it will High spin is canceled and the laundry Loosening phase with a number of Laundry correction cycles initiated. After completion of the The laundry loosening phase is redistributed Wash and hurling up to the selected one Nominal spin speed.
Die in der elektronischen Programmsteuereinheit abgespeicherte Wäschekorrekturzyklenanzahl wird mit den Tasten des Eingabefeldes und mit dem Programmwähler logisch verknüpft. D. h. je nach eingegebener Wäscheart und Menge oder von dem im gewählten Programm oder Programmteil ablaufenden Schleuderprogramm wird die Anzahl der Wäschekorrekturzyklen vom Mikroprozessor der Programmsteuereinheit bestimmt bzw. korrigiert. Bei Betätigung der 1/2-Spartaste kann beispielsweise das gesamte abgespeicherte Wäschekorrekturzyklen-Level grundsätzlich halbiert werden.The one in the electronic program control unit stored number of laundry correction cycles is with the Keys of the input field and logically with the program selector connected. I.e. depending on the type of laundry and quantity entered or from that in the selected program or program section running spin program is the number of Laundry correction cycles from the microprocessor Program control unit determined or corrected. At Pressing the 1/2 economy button, for example total stored laundry correction cycle level always be halved.
Es ist also jeder Wäsche- und Programmart bzw. Wäschemenge eine ganz bestimmte Anzahl von Wäschekorrekturzyklen zugeordnet.So it is every type of laundry and program or amount of laundry a certain number of laundry correction cycles assigned.
Da die Dauer eines Wäschekorrekturzyklus im Mittel etwa 30 Sekunden beträgt, läßt sich durch die oben erwähnte Programmzeitoptimierung bei minimaler Wäscheunwucht für das Schleudern eine erhebliche Reduzierung der gesamten Programmzeitdauer eines kompletten Waschgangs erzielen.Since the duration of a laundry correction cycle averages around 30 Seconds, can be determined by the above Program time optimization with minimal laundry imbalance for the Hurling a significant reduction in the total Achieve the program duration of a complete wash cycle.
In einer weiteren, vorteilhaften Ausgestaltung der Erfindung kann die vom Mikroprozessor angesteuerte elektronische Programmsteuereinheit mit Hilfe eines Niveausensors die Größe der Wäsche-Beladungsmenge und aufgrund der gebundenen Flotte die Wäscheart bestimmen und sofort die erforderliche Wäschekorrekturzyklenanzahl bereitstellen.In a further advantageous embodiment of the Invention can be controlled by the microprocessor electronic program control unit using a Level sensor the size of the laundry load and determine the type of laundry based on the tied fleet and immediately the required number of laundry correction cycles provide.
Weiterhin können in der elektronischen Programmsteuereinheit sowie in der elektronischen Drehzahlregeleinheit Zeiten für die Dauer eines Wäschekorrekturzyklus sowie verschiedene Reversier- Drehzahlgrößen abgespeichert und dieselben aufgrund der vom Mikroprozessor vorgenommenen Korrektur der Wäschekorrekturzyklenanzahl ebenfalls verändert bzw. korrigiert werden.Furthermore, in the electronic Program control unit as well as in the electronic Speed control unit times for the duration of one Laundry correction cycle and various reversing Speed quantities are saved and the same on the basis of the Microprocessor made correction of Number of laundry correction cycles also changed or Getting corrected.
Desweiteren kann in vorteilhafter Weise auch anstelle in der elektronischen Programmsteuereinheit in der elektronischen Drehzahlregeleinheit mit Mikroprozessor die Wäschekorrekturzyklenanzahl gespeichert und in Abhängigkeit von der Stellung eines mechanisch gesteuerten Programmschaltwerkes mit zusätzlichen mechanischen Programmwahltasten korrigiert werden. Außerdem ist es möglich diese Korrektur in Abhängigkeit von der Anwahl der Tasten des Eingabefeldes für Wäscheart und dergleichen vorzunehmen.Furthermore, instead of in an advantageous manner the electronic program control unit in the electronic speed control unit with microprocessor Number of laundry correction cycles saved and dependent from the position of a mechanically controlled Program switching mechanism with additional mechanical Program selection buttons are corrected. Besides, it is possible this correction depending on the selection of the Keys of the input field for the type of laundry and the like to make.
Claims (8)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873741792 DE3741792A1 (en) | 1987-12-10 | 1987-12-10 | Method for reducing the programme cycle times, especially in domestic washing machines |
FR8815894A FR2624528A1 (en) | 1987-12-10 | 1988-12-05 | PROCESS FOR REDUCING THE TIMING OF PROGRAMS, PARTICULARLY FOR DOMESTIC WASHING MACHINES |
IT8822888A IT1227519B (en) | 1987-12-10 | 1988-12-06 | PROCEDURE TO REDUCE THE TIMES OF THE PROGRAM, IN PARTICULAR IN DOMESTIC WASHING MACHINES |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19873741792 DE3741792A1 (en) | 1987-12-10 | 1987-12-10 | Method for reducing the programme cycle times, especially in domestic washing machines |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3741792A1 true DE3741792A1 (en) | 1989-06-22 |
Family
ID=6342252
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19873741792 Withdrawn DE3741792A1 (en) | 1987-12-10 | 1987-12-10 | Method for reducing the programme cycle times, especially in domestic washing machines |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3741792A1 (en) |
FR (1) | FR2624528A1 (en) |
IT (1) | IT1227519B (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4101341A1 (en) * | 1991-01-18 | 1992-07-23 | Ako Werke Gmbh & Co | Frequency transverter for operating polyphase induction motor - with control electronics to set operating frequency and voltage according to ideal motor speed |
DE4122307A1 (en) * | 1991-07-05 | 1993-01-14 | Licentia Gmbh | Registering program control parameters for washing machines for small or large laundry vol. - using revolution speed electronics reversibly driven drum, water supply system regulated irrespective of operational pressure, and level control system |
DE4206135A1 (en) * | 1992-02-28 | 1993-09-02 | Licentia Gmbh | Controlling spinning process of drum washing machine - using revolution speed control device for electric motor which is supplied with washing parameters., e.g. vol. of washing and/or type of washing, etc. |
DE4235614A1 (en) * | 1992-10-22 | 1994-04-28 | Ako Werke Gmbh & Co | Procedure for determining the unbalance of a loaded washing machine drum |
DE4237116A1 (en) * | 1992-11-03 | 1994-05-05 | Bosch Siemens Hausgeraete | Method for shortening a spin cycle in a washing machine controlled by a microcomputer |
DE10056570C1 (en) * | 2000-11-15 | 2002-03-07 | Whirlpool Co | Front-loading washing machine operating method with over-ride of imbalance sensor when washing light load or hand-wash fabrics |
EP1354997A1 (en) * | 2002-04-16 | 2003-10-22 | Miele & Cie. GmbH & Co. | Method to control the drum rotating speed of a program controlled machine for treating clothes |
EP1707663A1 (en) * | 2005-04-01 | 2006-10-04 | Brandt Industries | Method for controlling one or several parameters of a wash process and machine for such a method |
WO2006009380A3 (en) * | 2004-07-20 | 2006-10-26 | Lg Electronics Inc | Washing machine and method of controlling the same |
DE19831617B4 (en) * | 1997-07-14 | 2007-01-04 | Lg Electronics Inc. | Method for determining the amount of laundry in a drum washing machine |
US7673358B2 (en) | 2003-09-26 | 2010-03-09 | Miele & Cie Kg. | Method of controlling the revolutions of the drum of a program controlled laundry machine |
KR101031333B1 (en) | 2004-07-20 | 2011-04-29 | 엘지전자 주식회사 | Controlling method for washing machine |
US8679198B2 (en) | 2008-05-23 | 2014-03-25 | Lg Electronics Inc. | Washing machine and method of controlling a washing machine |
US8938835B2 (en) | 2008-05-23 | 2015-01-27 | Lg Electronics Inc. | Washing machine and method of controlling a washing machine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101138888B1 (en) * | 2003-11-25 | 2012-05-14 | 삼성전자주식회사 | Washing Machine And Control Method Thereof |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES440417A1 (en) * | 1974-09-06 | 1977-05-16 | Bosch Siemens Hausgeraete | Improvements introduced in a clothing washing machine that works according to the drum principle. (Machine-translation by Google Translate, not legally binding) |
DE3413967A1 (en) * | 1984-04-13 | 1985-10-17 | Vdo Adolf Schindling Ag, 6000 Frankfurt | Drum-type washing machine |
DE3436786A1 (en) * | 1984-10-06 | 1986-04-17 | Miele & Cie GmbH & Co, 4830 Gütersloh | Process for controlling the washing program of a drum-type washing machine and washing machine for carrying out the process |
DE3446288A1 (en) * | 1984-12-19 | 1986-06-19 | Licentia Gmbh | Method and arrangement for the program control of a washing machine |
FR2583437B1 (en) * | 1985-06-13 | 1988-04-08 | Ciapem | WASHING MACHINE HAVING CONTROL PROGRAMS THAT DIFFER ACCORDING TO LOAD |
-
1987
- 1987-12-10 DE DE19873741792 patent/DE3741792A1/en not_active Withdrawn
-
1988
- 1988-12-05 FR FR8815894A patent/FR2624528A1/en not_active Withdrawn
- 1988-12-06 IT IT8822888A patent/IT1227519B/en active
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4101341A1 (en) * | 1991-01-18 | 1992-07-23 | Ako Werke Gmbh & Co | Frequency transverter for operating polyphase induction motor - with control electronics to set operating frequency and voltage according to ideal motor speed |
DE4122307A1 (en) * | 1991-07-05 | 1993-01-14 | Licentia Gmbh | Registering program control parameters for washing machines for small or large laundry vol. - using revolution speed electronics reversibly driven drum, water supply system regulated irrespective of operational pressure, and level control system |
DE4206135A1 (en) * | 1992-02-28 | 1993-09-02 | Licentia Gmbh | Controlling spinning process of drum washing machine - using revolution speed control device for electric motor which is supplied with washing parameters., e.g. vol. of washing and/or type of washing, etc. |
DE4235614A1 (en) * | 1992-10-22 | 1994-04-28 | Ako Werke Gmbh & Co | Procedure for determining the unbalance of a loaded washing machine drum |
DE4237116A1 (en) * | 1992-11-03 | 1994-05-05 | Bosch Siemens Hausgeraete | Method for shortening a spin cycle in a washing machine controlled by a microcomputer |
DE19831617B4 (en) * | 1997-07-14 | 2007-01-04 | Lg Electronics Inc. | Method for determining the amount of laundry in a drum washing machine |
DE10056570C1 (en) * | 2000-11-15 | 2002-03-07 | Whirlpool Co | Front-loading washing machine operating method with over-ride of imbalance sensor when washing light load or hand-wash fabrics |
EP1354997A1 (en) * | 2002-04-16 | 2003-10-22 | Miele & Cie. GmbH & Co. | Method to control the drum rotating speed of a program controlled machine for treating clothes |
US7673358B2 (en) | 2003-09-26 | 2010-03-09 | Miele & Cie Kg. | Method of controlling the revolutions of the drum of a program controlled laundry machine |
US7475444B2 (en) | 2004-07-20 | 2009-01-13 | Lg Electronics Inc. | Washing machine and method of controlling the same |
WO2006009380A3 (en) * | 2004-07-20 | 2006-10-26 | Lg Electronics Inc | Washing machine and method of controlling the same |
EP1776498A2 (en) * | 2004-07-20 | 2007-04-25 | LG Electronics, Inc. | Washing machine and method of controlling the same |
KR101031333B1 (en) | 2004-07-20 | 2011-04-29 | 엘지전자 주식회사 | Controlling method for washing machine |
EP1776498A4 (en) * | 2004-07-20 | 2014-04-23 | Lg Electronics Inc | Washing machine and method of controlling the same |
FR2883890A1 (en) * | 2005-04-01 | 2006-10-06 | Brandt Ind Sas | METHOD FOR SERVICING ONE OR MORE PARAMETERS OF A WASHING PROCESS AND MACHINE USING SUCH A METHOD OF SERVICING |
EP1707663A1 (en) * | 2005-04-01 | 2006-10-04 | Brandt Industries | Method for controlling one or several parameters of a wash process and machine for such a method |
US8679198B2 (en) | 2008-05-23 | 2014-03-25 | Lg Electronics Inc. | Washing machine and method of controlling a washing machine |
US8938835B2 (en) | 2008-05-23 | 2015-01-27 | Lg Electronics Inc. | Washing machine and method of controlling a washing machine |
Also Published As
Publication number | Publication date |
---|---|
IT8822888A0 (en) | 1988-12-06 |
FR2624528A1 (en) | 1989-06-16 |
IT1227519B (en) | 1991-04-12 |
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Legal Events
Date | Code | Title | Description |
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8139 | Disposal/non-payment of the annual fee |