PL88698B1 - - Google Patents

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Publication number
PL88698B1
PL88698B1 PL1974170016A PL17001674A PL88698B1 PL 88698 B1 PL88698 B1 PL 88698B1 PL 1974170016 A PL1974170016 A PL 1974170016A PL 17001674 A PL17001674 A PL 17001674A PL 88698 B1 PL88698 B1 PL 88698B1
Authority
PL
Poland
Prior art keywords
pressure
cutting
cut
cutting knives
openings
Prior art date
Application number
PL1974170016A
Other languages
English (en)
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of PL88698B1 publication Critical patent/PL88698B1/pl

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D11/00Combinations of several similar cutting apparatus
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24BMANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B7/00Cutting tobacco
    • A24B7/04Cutting tobacco by machines with revolving knives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/12Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
    • B26D1/25Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member
    • B26D1/34Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut
    • B26D1/40Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member
    • B26D1/405Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a non-circular cutting member moving about an axis parallel to the line of cut and coacting with a rotary member for thin material, e.g. for sheets, strips or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26DCUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/56Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter
    • B26D1/62Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder
    • B26D1/626Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which travels with the work otherwise than in the direction of the cut, i.e. flying cutter and is rotating about an axis parallel to the line of cut, e.g. mounted on a rotary cylinder for thin material, e.g. for sheets, strips or the like
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/04Processes
    • Y10T83/0405With preparatory or simultaneous ancillary treatment of work
    • Y10T83/0419By distorting within elastic limit
    • Y10T83/0424By stretching
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/04Processes
    • Y10T83/0515During movement of work past flying cutter
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/04Processes
    • Y10T83/0524Plural cutting steps
    • Y10T83/0538Repetitive transverse severing from leading edge of work
    • Y10T83/0548With longitudinal severing
    • Y10T83/0553Effected by plural steps
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/04Processes
    • Y10T83/0524Plural cutting steps
    • Y10T83/0538Repetitive transverse severing from leading edge of work
    • Y10T83/0548With longitudinal severing
    • Y10T83/0562Prior to transverse severing
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/202With product handling means
    • Y10T83/2066By fluid current
    • Y10T83/207By suction means
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/465Cutting motion of tool has component in direction of moving work
    • Y10T83/4699Combined with other type cutter
    • Y10T83/4702With slitter
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/647With means to convey work relative to tool station
    • Y10T83/6476Including means to move work from one tool station to another
    • Y10T83/6489Slitter station
    • Y10T83/6491And transverse cutter station

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Paper (AREA)
  • Nonmetal Cutting Devices (AREA)
  • Manufacturing Of Cigar And Cigarette Tobacco (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Advancing Webs (AREA)

Description

Przedmiotem wynalazku jest urzadzenie do ciecia materialów w postaci arkuszy, a zwlaszcza do ciecia materialów lisciastych. W szczególnosci urza¬ dzenie nadaje sie do ciecia materialów arkuszo¬ wych, na przyklad aikuszy papieru, kartonu, papie¬ ru toaletowego, oraz materialów lisciastych, na przyklad lisci tytoniu.Znane jest z opisu patentowego USA nr 2,385,692 urzadzenie do ciecia papieru toaletowego z arku¬ szy, zawierajace walec nosny dla przemieszczania tego arkusza, zaopatrzony w szczeliny rozmieszcza¬ ne wzdluz jego tworzacych, polaczone z otworami cisnieniowymi, z których kazdy jest przyporzad¬ kowany jednej szczelinie. Ze szczelinami wspól¬ pracuja osadzone na rolce poprzecznie nacinajace noze, tak ze wykonuja one perforacje na arkuszu, zas wzdluznie tnace noze osadzone na drugiej rol¬ ce dokonuja ciecia wzdluznego arkuszy, wspólpra¬ cujac z obwodowo rozciagajacymi sie rowkami.Otwory cisnieniowe przemieszczaja sie wzgledem wylotów zródel nadcisnienia i podcisnienia, tak ze otwory cisnieniowe znajdujace sie przed tym otworem cisnieniowym, w którego przyporzadko¬ wanej mu szczelinie nastepuje ciecie arkusza, sa zawsze polaczone ze zródlem podcisnienia, przy- sysajacego arkusz do powierzchni obwodowej walca nosnego. Natomiast zródlo nadcisnienia jest zawsze polaczone z otworami cisnieniowymi znajdujacymi sie ponizej tego otworu cisnieniowego, w którego 2 przyporzadkowanej mu szczelinie nastepuje ciecie arkusza.Tego rodzaju urzadzenie nie nadaje sie równo¬ czesnie do ciecia materialów lamliwych w rodzaju lisci tytoniu, wykazujac mala wydajnosc ciecia.Urzadzenie wedlug wynalazku charakteryzuje sie tym, ze jeden z wylotów zródla podcisnienia, pod¬ czas trwania ciecia, jest zawsze polaczony z otwo¬ rem cisnieniowym tej szczeliny, w której naste- io jpuje ciecie materialu przez jeden z poprzecznie tnacych nozy.Dzieki temu mozliwe jest ciecie wszelkich ma¬ terialów w postaci arkuszy jak równiez materia¬ lów lisciastych, z duza wydajnoscia.Przedmiot wynalazku zostal blizej omówiony na przykladzie wykonania pokazanym na rysunku, na którym fig. 1 przedstawia urzadzenie w sche¬ matycznym widoku z przodu, fig. 2 — to samo urzaclzenie w przekroju schematycznym wzdluz linii II — II z fig. 1, fig. 3 — urzadzenie w wi¬ doku z góry, fig. 4 — powiekszony szczegól A z fig. 2, zas fig. 5 — powiekszony szczegól B z fig. 1.Jak pokazano na rysunku, urzadzenie posiada walec nosny 1, obracajacy sie w kierunku ozna¬ czonym strzalka na fig. 2, z którego czescia po¬ wierzchni obwodowej styka sie ciety material 2.Na walcu nosnym 1 wykonane sa szeregi obwo¬ dowych rowków 3, z którymi przecinaja sie usy- tuowane wzdluz tworzacych tego walca otwory 88 69888 698 cisnieniowe 4, polaczone z (powierzchnia walca szczelinami 5. Tym samym powierzchnia walca nosnego 1 jest podobna do szachownicy, okreslo¬ nej obwodowymi rowkami 3 i prostopadle przeci¬ najacymi sie z nimi wzdluznymi szczelinami 5.Szczeliny 5 maja tak dobrana szerokosc, ze moz¬ liwe jest wchodzenie w nie nozy poprzecznie tna¬ cych 9, zamocowanych na obwodzie rolki 8, któ¬ rej predkosc obrotowa jest zsynchronizowana z predkoscia obrotowa walca nosnego 1. Jeden ko¬ niec kazdego z otworów cisnieniowych 4 jest zamkniety, podczas gdy drugi jest otwarty. Z czo¬ lem walca nosnego wspólpracuje znany kolektor cisnienia, nie pokazany na rysunku, wzgledem którego przemieszczaja sie otwarte konce otworów cisnieniowych 4. Kolektor cisnienia jest zaopatrzo¬ ny w dwie pary otworów wylotowych z których jedna para jest polaczona ze zródlem podcisnienia 12, zas druga para jest polaczona ze zródlem nad¬ cisnienia 14. Kolektor jest usytuowany wzgledem walca nosnego nieruchomo, w takiej pozycji, ze na otwory wylotowe tego kolektora kolejno nachodza otwory cisnieniowe obracajacego sie walca nosne¬ go, z tym ze zawsze z otworami wylotowymi ko¬ lektora, do których jest dolaczone zródlo podcis¬ nienia, polaczony jest otwór cisnieniowy, w któ¬ rego przyporzadkowanej mu szczelinie zachodzi ciecie materialu 2, i otwór cisnieniowy, w którego szczelinie bedzie nastepowac kolejne ciecie. Nato¬ miast z otworami wylotowymi kolektora, dolaczo¬ nymi do zródla nadcisnienia, polaczone sa te dwa otwory cisnieniowe, w których w przyporzad¬ kowanych im szczelinach; 5 nastapilo juz ciecie ma- terialu 2 za pomoca nozy poprzecznie tnacych 9.Natomiast noze wzdluznie tnace 6 utwierdzone sa na rolce 7, usytuowanej przed nozami poprzecz¬ nie tnacymi, patrzac w kierunku przemieszczania sie materialu 2. PL PL PL

Claims (1)

1. Zastrzezenie patentowe Urzadzenie do ciecia materialów w postaci arku¬ szy, a zwlaszcza do ciecia materialów lisciastych,. zawierajace walec nosny dla przemieszczania cie- 15 tego materialu, zaopatrzony w rowki obwodowo rozciagajace sie i w szczeliny rozmieszczone wzdluz jego tworzacych, polaczone z otworami cisnieniowymi, z których kazdy jest przyporzad¬ kowany jednej szczelinie, które to otwory cisnie- 20 niowe sa laczone z wylotami zródel nadcisnienia' i podcisnienia, w wyniku przemieszczania sie wzgledem nich obrotowego walca, zas wzdluz osi tego walca usytuowane sa rolki dla mocowania nozy poprzecznie i wzdluznie tnacych, znamienne 25 tym, ze jeden z wylotów zródla podcisnienia (14), podczas trwania ciecia, jest zawsze polaczony z otworem cisnieniowym (4) tej szczeliny (5), w której nastepuje ciecie materialu (2) przez jeden z poprzecznie tnacych nozy (9).88 698 FIG. 2 a i/A Iffi 4JIII Tt Mffl Li III ? 3 ^ ar FIG. A FIG. 3 FIG. 5 PL PL PL
PL1974170016A 1973-04-02 1974-04-01 PL88698B1 (pl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1570373A GB1402200A (en) 1973-04-02 1973-04-02 Sheet cutter

Publications (1)

Publication Number Publication Date
PL88698B1 true PL88698B1 (pl) 1976-09-30

Family

ID=10063963

Family Applications (1)

Application Number Title Priority Date Filing Date
PL1974170016A PL88698B1 (pl) 1973-04-02 1974-04-01

Country Status (17)

Country Link
US (1) US3875836A (pl)
JP (1) JPS5326866B2 (pl)
AU (1) AU473717B2 (pl)
BE (1) BE812787A (pl)
CA (1) CA997672A (pl)
CH (1) CH576321A5 (pl)
DD (1) DD112728A5 (pl)
DE (1) DE2415436A1 (pl)
DK (1) DK137890B (pl)
ES (1) ES424858A1 (pl)
FR (1) FR2223288B1 (pl)
GB (1) GB1402200A (pl)
IT (1) IT1011105B (pl)
LU (1) LU69753A1 (pl)
NL (1) NL7403505A (pl)
PL (1) PL88698B1 (pl)
ZA (1) ZA741372B (pl)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4010763A (en) * 1975-12-18 1977-03-08 Culbro Corporation Adjustable apparatus for cutting wrappers for double cigar bunches of different sizes
JPS55164840U (pl) * 1979-05-14 1980-11-27
JPS5633298A (en) * 1979-08-27 1981-04-03 Teijin Ltd Method and device for cutting sheet or film
US4638934A (en) * 1984-10-02 1987-01-27 Jerry Fram Slitting and dicing machine for fiberglass mat and mats of other brittle abrasive fibers
DE3500547A1 (de) * 1985-01-10 1986-07-10 Focke & Co (GmbH & Co), 2810 Verden Verfahren und vorrichtung zum herstellen von zuschnitten fuer verpackungen
US4782729A (en) * 1987-09-11 1988-11-08 Mathot Ernest R Animal fiber cutting machine
DE3730810A1 (de) * 1987-09-14 1989-03-23 Hauni Werke Koerber & Co Kg Schneidvorrichtung an maschinen der tabakverarbeitenden industrie zum ausfuehren von schnitten an duennen materialstreifen
GB2230489A (en) * 1989-04-12 1990-10-24 Carl Mfg Co Cutter for shredder
DE3917845A1 (de) * 1989-06-01 1990-12-06 Roland Man Druckmasch Schneidvorrichtung fuer ein falzwerk einer druckmaschine
MY107797A (en) * 1990-05-01 1996-06-29 Nippon Petrochemicals Co Ltd An apparatus and method for forming slits.
US5069735A (en) * 1990-06-04 1991-12-03 Milliken Research Corporation Apparatus for producing sealed edge knit wiping cloths
IT1242561B (it) * 1990-08-24 1994-05-16 Gd Spa Dispositivo per il taglio di un nastro in macchine confezionatrici di prodotti.
US5140880A (en) * 1991-05-08 1992-08-25 Littleton Industrial Consultants, Inc. Push-pull apparatus and method for web cutting and trim strip removal
US5146820A (en) * 1991-05-10 1992-09-15 Machine Design Service, Inc. Paper cutting apparatus and method
US5946994A (en) * 1991-12-11 1999-09-07 Corropak, Inc. Void fill material and process for manufacturing same
DE4408075C2 (de) * 1994-03-10 1998-10-29 Roland Man Druckmasch Vorrichtung zum Längsschneiden von Bedruckstoffen in Bogen- und Rollenmaschinen
US5714027A (en) * 1996-03-22 1998-02-03 The Procter & Gamble Company Method of folding and handling a web of material in a continuous operation
US7156007B1 (en) * 1996-05-20 2007-01-02 Stockhausen Gmbh Device and a process for coarsely grinding hydrous polymer gels
US20030159558A1 (en) * 2001-03-02 2003-08-28 Hiroshi Takayama Cut and removal apparatus and method
US6868785B2 (en) * 2002-03-13 2005-03-22 Goss International Corporation De-Duster for a moving printing material web and cutting device, folder and printing press having the de-duster
US7066066B2 (en) * 2004-03-15 2006-06-27 Teck Cominco Metals Ltd. Continuous rotary hole punching method and apparatus
RU2619380C2 (ru) 2013-03-14 2017-05-15 Сандвик Интеллекчуал Проперти Аб Натяжное устройство для вращающегося режущего механизма
DE102018221744B4 (de) * 2018-12-14 2020-08-13 Bach Maschinenbau Gmbh Längsschneidevorrichtung und Verfahren zur Herstellung einer zugehörigen Umlenkwalze
CN113876020A (zh) * 2021-09-17 2022-01-04 河南中烟工业有限责任公司 烟片分级定长切丝装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2385692A (en) * 1942-04-07 1945-09-25 Scott Paper Co Continuous winding machine
SE302423B (pl) * 1967-06-29 1968-07-15 Arenco Ab
US3589224A (en) * 1968-10-14 1971-06-29 Buckee Mears Co Die punching printed circuit
DE7123640U (de) * 1971-06-19 1971-11-11 General Corrugated Machinery Vorrichtung zum laengsschlitzen und schneiden von wellpappenbahnen
JPH046390U (pl) * 1990-04-26 1992-01-21

Also Published As

Publication number Publication date
CH576321A5 (pl) 1976-06-15
GB1402200A (en) 1975-08-06
US3875836A (en) 1975-04-08
JPS5326866B2 (pl) 1978-08-04
IT1011105B (it) 1977-01-20
NL7403505A (pl) 1974-10-04
ZA741372B (en) 1975-01-29
JPS5030191A (pl) 1975-03-26
AU473717B2 (en) 1976-07-01
CA997672A (en) 1976-09-28
DK137890C (pl) 1978-10-23
DK137890B (da) 1978-05-29
FR2223288B1 (pl) 1977-10-14
ES424858A1 (es) 1976-05-16
FR2223288A1 (pl) 1974-10-25
DD112728A5 (pl) 1975-05-05
AU6650074A (en) 1975-09-11
BE812787A (fr) 1974-09-25
DE2415436A1 (de) 1974-10-10
LU69753A1 (pl) 1974-07-17

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