BE821568A - Procede de gonflement du tabac - Google Patents

Procede de gonflement du tabac

Info

Publication number
BE821568A
BE821568A BE149957A BE149957A BE821568A BE 821568 A BE821568 A BE 821568A BE 149957 A BE149957 A BE 149957A BE 149957 A BE149957 A BE 149957A BE 821568 A BE821568 A BE 821568A
Authority
BE
Belgium
Prior art keywords
inflation process
tobacco
tobacco inflation
inflation
Prior art date
Application number
BE149957A
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23754202&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BE821568(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Publication of BE821568A publication Critical patent/BE821568A/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
    • A24B3/00—Preparing tobacco in the factory
    • A24B3/18—Other treatment of leaves, e.g. puffing, crimpling, cleaning
    • A24B3/182—Puffing
    • A24B3/185—Puffing by impregnating with a liquid and subsequently freezing and evaporating this liquid
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/06—Radiation therapy using light
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S131/00—Tobacco
    • Y10S131/90—Liquified gas employed in puffing tobacco

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Manufacture Of Tobacco Products (AREA)
BE149957A 1974-02-12 1974-10-28 Procede de gonflement du tabac BE821568A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/441,767 US4340073A (en) 1974-02-12 1974-02-12 Expanding tobacco

Publications (1)

Publication Number Publication Date
BE821568A true BE821568A (fr) 1975-02-17

Family

ID=23754202

Family Applications (1)

Application Number Title Priority Date Filing Date
BE149957A BE821568A (fr) 1974-02-12 1974-10-28 Procede de gonflement du tabac

Country Status (24)

Country Link
US (1) US4340073A (fr)
JP (1) JPS563021B2 (fr)
AR (1) AR201523A1 (fr)
AU (1) AU7423574A (fr)
BE (1) BE821568A (fr)
BG (1) BG28831A3 (fr)
CA (1) CA1013640A (fr)
CH (1) CH587615A5 (fr)
DO (1) DOP1974002320A (fr)
ES (1) ES431446A1 (fr)
FI (1) FI58048C (fr)
FR (1) FR2260301B1 (fr)
GB (1) GB1444309A (fr)
HK (1) HK42178A (fr)
IL (1) IL45986A (fr)
IN (1) IN143109B (fr)
IT (1) IT1040558B (fr)
MY (1) MY8000057A (fr)
NL (1) NL7414525A (fr)
NO (1) NO142650C (fr)
PH (1) PH14295A (fr)
SE (1) SE410815B (fr)
SU (1) SU677631A3 (fr)
YU (1) YU36855B (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2625241A1 (de) * 1975-06-05 1976-12-09 Philip Morris Inc Verfahren zum expandieren von tabak
DE2912322A1 (de) * 1978-03-29 1979-10-04 Philip Morris Inc Verfahren zur ausdehnung von tabak
EP0029588A1 (fr) * 1979-11-21 1981-06-03 Philip Morris Incorporated Procédé pour l'expansion de tabac imprégné
EP0055541A1 (fr) * 1980-12-31 1982-07-07 Philip Morris Incorporated Procédé pour améliorer le pouvoir de remplissage de tabac gonflé

Families Citing this family (137)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1570270A (en) * 1977-08-08 1980-06-25 Philip Morris Inc Process for expanding tobacco
USRE32014E (en) * 1977-08-08 1985-10-29 Philip Morris, Inc. Process for expanding tobacco
US4336814A (en) * 1977-08-08 1982-06-29 Philip Morris Incorporated Process for expanding tobacco
US4253474A (en) * 1978-03-31 1981-03-03 American Brands, Inc. Method for expanding tobacco
US4310006A (en) * 1978-03-31 1982-01-12 American Brands, Inc. Method and apparatus for expanding tobacco
US4250898A (en) * 1978-10-13 1981-02-17 Philip Morris Incorporated Carbon dioxide impregnation of tobacco by super cooling
US4270553A (en) * 1978-11-13 1981-06-02 R. J. Reynolds Tobacco Company Process and apparatus for expanding tobacco
US4257431A (en) * 1978-11-13 1981-03-24 R. J. Reynolds Tobacco Company Process for expanding tobacco
DE2903300C2 (de) * 1979-01-29 1982-06-09 H.F. & Ph.F. Reemtsma Gmbh & Co, 2000 Hamburg Verfahren zur Verbesserung der Füllfähigkeit von Tabaken
US4308876A (en) * 1979-02-16 1982-01-05 Airco, Inc. Methods and apparatus for expanding tobacco
US4460000A (en) * 1982-06-14 1984-07-17 The Boc Group, Inc. Vacuum and gas expansion of tobacco
US4532945A (en) * 1982-09-21 1985-08-06 Philip Morris Incorporated Process for increasing and maintaining the filling power of tobacco
US4554932A (en) * 1983-03-03 1985-11-26 R. J. Reynolds Tobacco Company Pressure vessel and method of using same
EP0123116B1 (fr) * 1983-04-21 1988-05-18 H.F. & Ph.F. Reemtsma GmbH & Co Procédé pour améliorer l'aptitude à charge du tabac
CH662478A5 (de) * 1983-04-23 1987-10-15 Hauni Werke Koerber & Co Kg Verfahren und einrichtung zum blaehen von tabak.
US4519407A (en) * 1983-06-13 1985-05-28 Hellier John A Method and apparatus for treating tobacco
US4528994A (en) * 1983-12-16 1985-07-16 Brown & Williamson Tobacco Corporation Tobacco treating process
US4760854A (en) * 1985-12-02 1988-08-02 Brown & Williamson Tobacco Corporation Tobacco expansion process
JPS62161018U (fr) * 1986-04-01 1987-10-13
US4791942A (en) * 1986-08-01 1988-12-20 The American Tobacco Company Process and apparatus for the expansion of tobacco
US5076293A (en) * 1989-06-19 1991-12-31 R. J. Reynolds Tobacco Company Process and apparatus for the treatment of tobacco material
US5056537A (en) * 1989-09-29 1991-10-15 R. J. Reynolds Tobacco Company Cigarette
US5095922A (en) * 1990-04-05 1992-03-17 R. J. Reynolds Tobacco Company Process for increasing the filling power of tobacco material
US5143096A (en) * 1991-02-04 1992-09-01 The Boc Group, Inc. Method and apparatus for expanding cellular materials
US5251649A (en) * 1991-06-18 1993-10-12 Philip Morris Incorporated Process for impregnation and expansion of tobacco
US5259403A (en) * 1992-03-18 1993-11-09 R. J. Reynolds Tobacco Company Process and apparatus for expanding tobacco cut filler
SK139993A3 (en) * 1992-12-17 1994-09-07 Philip Morris Prod Method of impregnation and expanding of tobacco and device for its performing
US5819754A (en) * 1995-12-29 1998-10-13 R. J. Reynolds Tobacco Company Tobacco expansion processes and apparatus
US5908032A (en) * 1996-08-09 1999-06-01 R.J. Reynolds Tobacco Company Method of and apparatus for expanding tobacco
DE19734364A1 (de) * 1997-08-08 1999-02-11 Hauni Maschinenbau Ag Verfahren und Vorrichtung zum Aufbringen eines Konditionierungsmediums auf Tabakmaterial
EP1104996B1 (fr) 1998-08-17 2003-02-26 Unilever Plc Traitement de the au dioxyde de carbone
US6209546B1 (en) 1998-11-30 2001-04-03 Truman W. Ellison Apparatus and method for improved hydrate formation and improved efficiency of recovery of expansion agent in processes for expanding tobacco and other agricultural products
US6575170B1 (en) 2000-11-27 2003-06-10 Ravi Prasad Method and apparatus for expanding tobacco material
US7025066B2 (en) * 2002-10-31 2006-04-11 Jerry Wayne Lawson Method of reducing the sucrose ester concentration of a tobacco mixture
US7556047B2 (en) * 2003-03-20 2009-07-07 R.J. Reynolds Tobacco Company Method of expanding tobacco using steam
EP1675454A4 (fr) * 2003-08-19 2007-03-21 22Nd Century Ltd Llc Produits de tabac a exposition reduite
EP1893043A4 (fr) 2005-05-11 2013-07-31 Vector Tobacco Inc Produits du tabac a risques reduits et procede permettant de produire ceux-ci
US20070137663A1 (en) * 2005-12-01 2007-06-21 R. J. Reynolds Tobacco Company Method of extracting sucrose esters from oriental tobacco
EP1925218A1 (fr) * 2006-11-23 2008-05-28 Philip Morris Products S.A. Système pour la production de tabac expansé
US20100206317A1 (en) * 2007-09-28 2010-08-19 Vector Tobacco, Inc. Reduced risk tobacco products and use thereof
US8178145B1 (en) 2007-11-14 2012-05-15 JMC Enterprises, Inc. Methods and systems for applying sprout inhibitors and/or other substances to harvested potatoes and/or other vegetables in storage facilities
US8944072B2 (en) 2009-06-02 2015-02-03 R.J. Reynolds Tobacco Company Thermal treatment process for tobacco materials
US8434496B2 (en) 2009-06-02 2013-05-07 R. J. Reynolds Tobacco Company Thermal treatment process for tobacco materials
US20110220130A1 (en) 2009-12-15 2011-09-15 John-Paul Mua Tobacco Product And Method For Manufacture
US9605890B2 (en) 2010-06-30 2017-03-28 Jmc Ventilation/Refrigeration, Llc Reverse cycle defrost method and apparatus
US9210951B2 (en) * 2010-12-23 2015-12-15 Philip Morris Products S.A. Tobacco cut filler including cut rolled stems
MX2013009504A (es) 2011-02-17 2014-03-27 British American Tobacco Co Articulos para fumar.
US9420825B2 (en) 2012-02-13 2016-08-23 R.J. Reynolds Tobacco Company Whitened tobacco composition
US20130269719A1 (en) 2012-04-11 2013-10-17 R.J. Reynolds Tobacco Company Method for treating plants with probiotics
GB201207211D0 (en) 2012-04-25 2012-06-06 British American Tobacco Co Smoking articles
US9485953B2 (en) 2012-07-19 2016-11-08 R.J. Reynolds Tobacco Company Method for treating tobacco plants with enzymes
GB201221207D0 (en) * 2012-11-26 2013-01-09 British American Tobacco Co Treatment of tobacco material
US9155334B2 (en) 2013-04-05 2015-10-13 R.J. Reynolds Tobacco Company Modification of bacterial profile of tobacco
US10076129B1 (en) 2016-07-15 2018-09-18 JMC Enterprises, Inc. Systems and methods for inhibiting spoilage of stored crops
US10470487B2 (en) 2017-04-06 2019-11-12 R.J. Reynolds Tobacco Company Smoke treatment
US11284642B2 (en) 2017-09-05 2022-03-29 Philip Morris Usa Inc. Vessel screen retaining system and method
US11278050B2 (en) 2017-10-20 2022-03-22 R.J. Reynolds Tobacco Company Methods for treating tobacco and tobacco-derived materials to reduce nitrosamines
GB201803905D0 (en) * 2018-03-12 2018-04-25 British American Tobacco Investments Ltd Methods for treating tobacco, material, apparatus for treating tobacco material, treated tobacco material and uses thereof
US20200196658A1 (en) 2018-12-20 2020-06-25 R.J. Reynolds Tobacco Company Method for whitening tobacco
US11213062B2 (en) 2019-05-09 2022-01-04 American Snuff Company Stabilizer for moist snuff
US20210068446A1 (en) 2019-09-11 2021-03-11 R. J. Reynolds Tobacco Company Oral product with cellulosic flavor stabilizer
MX2022003094A (es) 2019-09-11 2022-04-11 Nicoventures Trading Ltd Metodos alternativos para blanquear el tabaco.
US12063953B2 (en) 2019-09-11 2024-08-20 Nicoventures Trading Limited Method for whitening tobacco
US20210068447A1 (en) 2019-09-11 2021-03-11 R. J. Reynolds Tobacco Company Pouched products with enhanced flavor stability
US11369131B2 (en) 2019-09-13 2022-06-28 Nicoventures Trading Limited Method for whitening tobacco
US11903406B2 (en) 2019-09-18 2024-02-20 American Snuff Company, Llc Method for fermenting tobacco
EP4051020A1 (fr) 2019-10-31 2022-09-07 Nicoventures Trading Limited Produit oral et son procédé de fabrication
WO2021116916A1 (fr) 2019-12-09 2021-06-17 Nicoventures Trading Limited Produit oral avec de multiples arômes ayant différents profils de libération
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US20210169868A1 (en) 2019-12-09 2021-06-10 Nicoventures Trading Limited Oral compositions with reduced water content
WO2021116895A2 (fr) 2019-12-09 2021-06-17 Nicoventures Trading Limited Sachet sensible à un stimulus
MX2022007085A (es) 2019-12-09 2022-08-19 Nicoventures Trading Ltd Nanoemulsion para uso oral.
US20210169890A1 (en) 2019-12-09 2021-06-10 Nicoventures Trading Limited Oral composition with polymeric component
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WO2021116865A1 (fr) 2019-12-09 2021-06-17 Nicoventures Trading Limited Agents pour composition orale
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US20210169123A1 (en) 2019-12-09 2021-06-10 Nicoventures Trading Limited Pouched products with enhanced flavor stability
WO2021116855A1 (fr) 2019-12-09 2021-06-17 Nicoventures Trading Limited Compositions orales et procédés de fabrication
US20210169126A1 (en) 2019-12-09 2021-06-10 Nicoventures Trading Limited Oral composition with salt inclusion
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US11617744B2 (en) 2019-12-09 2023-04-04 Nico Ventures Trading Limited Moist oral compositions
CA3159451A1 (fr) 2019-12-09 2021-06-17 Savannah JOHNSON Produits en sachet avec liant thermoscellable
US20210169138A1 (en) 2019-12-09 2021-06-10 Nicoventures Trading Limited Fibrous fleece material
EP4072334A1 (fr) 2019-12-09 2022-10-19 Nicoventures Trading Limited Produit oral à composant soluble
US20210169786A1 (en) 2019-12-09 2021-06-10 Nicoventures Trading Limited Oral composition with beet material
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WO2021116919A1 (fr) 2019-12-09 2021-06-17 Nicoventures Trading Limited Non-tissé pour produit oral avec composant libérable
US20210169132A1 (en) 2019-12-09 2021-06-10 Nicoventures Trading Limited Oral composition including gels
US11712059B2 (en) 2020-02-24 2023-08-01 Nicoventures Trading Limited Beaded tobacco material and related method of manufacture
WO2021250516A1 (fr) 2020-06-08 2021-12-16 Nicoventures Trading Limited Composition orale effervescente comprenant un principe actif
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GB202016880D0 (en) * 2020-10-23 2020-12-09 Nicoventures Trading Ltd Articles for use in non-combustible aerosol provision systems
US20240008522A1 (en) 2020-11-18 2024-01-11 Nicoventures Trading Limited Oral products
EP4284972A1 (fr) 2021-01-28 2023-12-06 Nicoventures Trading Limited Procédé de fermeture hermétique de sachets
EP4307928A1 (fr) 2021-03-19 2024-01-24 Nicoventures Trading Limited Substrats extrudés pour dispositifs de distribution d'aérosol
IL306021A (en) 2021-03-19 2023-11-01 Nicoventures Trading Ltd Substrates of material in the form of granules for spray delivery facilities
CA3216322A1 (fr) 2021-04-22 2022-10-27 Nicoventures Trading Limited Composition orale effervescente
MX2023012458A (es) 2021-04-22 2024-01-08 Nicoventures Trading Ltd Peliculas de disolucion oral.
US20220354785A1 (en) 2021-04-22 2022-11-10 Nicoventures Trading Limited Oral lozenge products
EP4326097A1 (fr) 2021-04-22 2024-02-28 Nicoventures Trading Limited Compositions destinées à être administrées par voie orale et procédés de production
US20220354155A1 (en) 2021-04-30 2022-11-10 Nicoventures Trading Limited Multi-compartment oral pouched product
EP4329522A1 (fr) 2021-04-30 2024-03-06 Nicoventures Trading Limited Produits destinés à être administrés par voie orale à charge de haute densité
CA3217959A1 (fr) 2021-05-06 2022-11-10 Matthew D. SAIN Compositions orales et procedes associes pour reduire l'irritation de la gorge
JP2024523362A (ja) 2021-06-16 2024-06-28 ニコベンチャーズ トレーディング リミテッド 溶解可能な組成物を含むパウチ製品
EP4358747A1 (fr) 2021-06-21 2024-05-01 Nicoventures Trading Limited Comprimé de produit oral et procédé de fabrication
CA3223902A1 (fr) 2021-06-25 2022-12-29 Richard Svensson Produits pour voie buccale et procede de fabrication
CA3225070A1 (fr) 2021-07-09 2023-01-12 Caroline W. H. CLARK Structures extrudees
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MX2024003998A (es) 2021-09-30 2024-06-03 Nicoventures Trading Ltd Producto oral con una amina basica y un agente de emparejamiento ionico.
EP4408184A1 (fr) 2021-09-30 2024-08-07 Nicoventures Trading Limited Composition de gomme orale
MX2024005869A (es) 2021-11-15 2024-07-15 Nicoventures Trading Ltd Productos con caracteristicas sensoriales mejoradas.
MX2024005868A (es) 2021-11-15 2024-07-15 Nicoventures Trading Ltd Productos orales con complejo de nicotina-polimero.
US20230189877A1 (en) 2021-12-20 2023-06-22 Nicoventures Trading Limited Substrate material comprising beads for aerosol delivery devices
US20230309603A1 (en) 2022-03-31 2023-10-05 R.J. Reynolds Tobacco Company Agglomerated botanical material for oral products
WO2023194959A1 (fr) 2022-04-06 2023-10-12 Nicoventures Trading Limited Produits en sachet avec liant thermoscellable
WO2023242822A1 (fr) 2022-06-17 2023-12-21 Nicoventures Trading Limited Feuille revêtue de tabac et consommable fabriqué à partir de celle-ci
WO2024069542A1 (fr) 2022-09-30 2024-04-04 R. J. Reynolds Tobacco Company Procédé de formation de tabac reconstitué
WO2024069544A1 (fr) 2022-09-30 2024-04-04 Nicoventures Trading Limited Substrat de tabac reconstitué pour dispositif de distribution d'aérosol
WO2024079722A1 (fr) 2022-10-14 2024-04-18 Nicoventures Trading Limited Produits en sachet contenant des capsules
WO2024089588A1 (fr) 2022-10-24 2024-05-02 Nicoventures Trading Limited Produits en forme de sachet
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WO2024095163A1 (fr) 2022-11-01 2024-05-10 Nicoventures Trading Limited Composition orale comprenant un agent d'ajustement de ph encapsulé
WO2024095162A1 (fr) 2022-11-01 2024-05-10 Nicoventures Trading Limited Procédé de préparation d'un produit en sachet comprenant un sel de nicotine
WO2024161256A1 (fr) 2023-01-31 2024-08-08 Nicoventures Trading Limited Matériaux de génération d'aérosol comprenant un matériau botanique
WO2024161353A1 (fr) 2023-02-02 2024-08-08 Nicoventures Trading Limited Substrat de génération d'aérosol contenant une capsule pour dispositif de distribution d'aérosol
WO2024171117A1 (fr) 2023-02-15 2024-08-22 Nicoventures Trading Limited Produits oraux à charge de haute densité
WO2024171119A1 (fr) 2023-02-17 2024-08-22 Nicoventures Trading Limited Matériau fibreux pour dispositif de distribution d'aérosol
WO2024180481A1 (fr) 2023-02-28 2024-09-06 Nicoventures Trading Limited Produit à prendre par voie orale contenant de la caféine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1924827A (en) * 1927-11-08 1933-08-29 Anderson Puffed Rice Company Production of puffed products
US1789435A (en) * 1929-01-28 1931-01-20 American Mach & Foundry Expanding tobacco
US3575178A (en) * 1969-03-13 1971-04-20 Reynolds Tobacco Co R A process for increasing the filling capacity of tobacco
US3665061A (en) * 1969-07-16 1972-05-23 United States Banknote Corp Process for producing collagen sponges
US3771533A (en) * 1970-08-31 1973-11-13 Philip Morris Inc Process for puffing tobacco

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2625241A1 (de) * 1975-06-05 1976-12-09 Philip Morris Inc Verfahren zum expandieren von tabak
DE2912322A1 (de) * 1978-03-29 1979-10-04 Philip Morris Inc Verfahren zur ausdehnung von tabak
EP0029588A1 (fr) * 1979-11-21 1981-06-03 Philip Morris Incorporated Procédé pour l'expansion de tabac imprégné
EP0055541A1 (fr) * 1980-12-31 1982-07-07 Philip Morris Incorporated Procédé pour améliorer le pouvoir de remplissage de tabac gonflé

Also Published As

Publication number Publication date
FR2260301A1 (fr) 1975-09-05
ES431446A1 (es) 1977-01-16
YU282274A (en) 1982-02-25
IN143109B (fr) 1977-10-01
CH587615A5 (fr) 1977-05-13
BG28831A3 (en) 1980-07-15
PH14295A (en) 1981-05-04
IL45986A0 (en) 1975-02-10
FI286774A (fr) 1975-08-13
US4340073A (en) 1982-07-20
DOP1974002320A (es) 1983-04-09
FR2260301B1 (fr) 1977-10-28
NO142650C (no) 1980-09-24
MY8000057A (en) 1980-12-31
SE7412497L (fr) 1975-08-13
AU7423574A (en) 1976-04-15
HK42178A (en) 1978-07-28
NO743552L (fr) 1975-08-13
FI58048C (fi) 1980-12-10
IL45986A (en) 1978-07-31
NL7414525A (nl) 1975-08-14
JPS563021B2 (fr) 1981-01-22
DE2446899B2 (de) 1977-03-10
SU677631A3 (ru) 1979-07-30
AR201523A1 (es) 1975-03-21
IT1040558B (it) 1979-12-20
JPS50107197A (fr) 1975-08-23
GB1444309A (en) 1976-07-28
SE410815B (sv) 1979-11-12
FI58048B (fi) 1980-08-29
YU36855B (en) 1984-08-31
CA1013640A (en) 1977-07-12
NO142650B (no) 1980-06-16
DE2446899A1 (de) 1975-08-21

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