CA1091305A - Microwave heating package and method - Google Patents

Microwave heating package and method

Info

Publication number
CA1091305A
CA1091305A CA274,097A CA274097A CA1091305A CA 1091305 A CA1091305 A CA 1091305A CA 274097 A CA274097 A CA 274097A CA 1091305 A CA1091305 A CA 1091305A
Authority
CA
Canada
Prior art keywords
food
microwave
package
heating
sheet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA274,097A
Other languages
English (en)
French (fr)
Inventor
Charles H. Turpin
Thomas C. Hoese
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pillsbury Co
Original Assignee
Pillsbury Co
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 by Pillsbury Co filed Critical Pillsbury Co
Application granted granted Critical
Publication of CA1091305A publication Critical patent/CA1091305A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • B65D81/3446—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package specially adapted to be heated by microwaves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3401—Cooking or heating method specially adapted to the contents of the package
    • B65D2581/3402—Cooking or heating method specially adapted to the contents of the package characterised by the type of product to be heated or cooked
    • B65D2581/3405—Cooking bakery products
    • B65D2581/3406—Pizza or bread
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3439—Means for affecting the heating or cooking properties
    • B65D2581/3447—Heat attenuators, blocking agents or heat insulators for temperature control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3439—Means for affecting the heating or cooking properties
    • B65D2581/3448—Binders for microwave reactive materials, e.g. for inks or coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3463—Means for applying microwave reactive material to the package
    • B65D2581/3464—Microwave reactive material applied by ink printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3471—Microwave reactive substances present in the packaging material
    • B65D2581/3472—Aluminium or compounds thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3471—Microwave reactive substances present in the packaging material
    • B65D2581/3477—Iron or compounds thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3471—Microwave reactive substances present in the packaging material
    • B65D2581/3479—Other metallic compounds, e.g. silver, gold, copper, nickel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3471—Microwave reactive substances present in the packaging material
    • B65D2581/3481—Silicon or oxides thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3471—Microwave reactive substances present in the packaging material
    • B65D2581/3482—Ceramic compositions, e.g. vermiculite, bentonite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3486—Dielectric characteristics of microwave reactive packaging
    • B65D2581/3489—Microwave reflector, i.e. microwave shield
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within
    • B65D2581/3437—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within specially adapted to be heated by microwaves
    • B65D2581/3486—Dielectric characteristics of microwave reactive packaging
    • B65D2581/3494—Microwave susceptor

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Cookers (AREA)
  • Electric Ovens (AREA)
  • Constitution Of High-Frequency Heating (AREA)
  • Food-Manufacturing Devices (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)
  • General Preparation And Processing Of Foods (AREA)
CA274,097A 1976-10-08 1977-03-16 Microwave heating package and method Expired CA1091305A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US73087376A 1976-10-08 1976-10-08
US730,873 1976-10-08

Publications (1)

Publication Number Publication Date
CA1091305A true CA1091305A (en) 1980-12-09

Family

ID=24937139

Family Applications (1)

Application Number Title Priority Date Filing Date
CA274,097A Expired CA1091305A (en) 1976-10-08 1977-03-16 Microwave heating package and method

Country Status (13)

Country Link
JP (1) JPS5345748A (nl)
AT (1) AT362296B (nl)
AU (1) AU506612B2 (nl)
BE (1) BE859509A (nl)
BR (1) BR7704865A (nl)
CA (1) CA1091305A (nl)
CH (1) CH626581A5 (nl)
DE (1) DE2745307A1 (nl)
FR (1) FR2367003A1 (nl)
GB (1) GB1592978A (nl)
IT (1) IT1090092B (nl)
MX (1) MX145465A (nl)
NL (1) NL7707116A (nl)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1153069A (en) * 1979-03-16 1983-08-30 Oscar E. Seiferth Food receptacle for microwave cooking
DE3106236C2 (de) * 1981-02-20 1986-11-27 Paul 8000 München Hirsch Zusatzvorrichtung für Mikrowellengeräte zum Kochen und Garen
JPS58175725A (ja) * 1982-04-07 1983-10-15 Matsushita Electric Ind Co Ltd 高周波加熱装置
US4496815A (en) * 1983-01-14 1985-01-29 Northland Aluminum Products, Inc. Microwave browning utensil
CA1239999A (en) * 1985-06-25 1988-08-02 Richard M. Keefer Microwave container and package comprising said container and a body of material to be heated, and method of making same
DE3604633A1 (de) * 1985-10-04 1987-04-09 Ingrid Richter Verschliessbarer kochbehaelter fuer mikrowellenherde
FR2592764B1 (fr) * 1986-01-14 1990-08-17 Mayer Ferdy Convertisseur integre dans l'enveloppe d'un aliment pour cuisson et rechauffement dans un four a micro-ondes
US4794005A (en) * 1986-02-14 1988-12-27 James River Corporation Package assembly including a multi-surface, microwave interactive tray
JPS6387405U (nl) * 1986-11-27 1988-06-07
JPH057755Y2 (nl) * 1986-12-19 1993-02-26
JPH061150B2 (ja) * 1986-12-27 1994-01-05 日本碍子株式会社 ハニカム構造体の誘電乾燥法
FR2613044B1 (fr) * 1987-03-27 1989-06-30 Newtec Internal Procede de chauffage par micro-ondes plus specialement d'un produit alimentaire notamment comprenant une tranche de pain et une garniture et four a micro-ondes pour la mise en oeuvre du procede
US4810845A (en) * 1987-06-01 1989-03-07 General Mills, Inc. Solid state ceramic microwave heating susceptor
US4818831A (en) * 1987-06-25 1989-04-04 General Mills, Inc. Amphoteric ceramic microwave heating susceptor
US5183787A (en) * 1987-09-10 1993-02-02 General Mills, Inc. Amphoteric ceramic microwave heating susceptor compositions with metal salt moderators
US4927991A (en) * 1987-11-10 1990-05-22 The Pillsbury Company Susceptor in combination with grid for microwave oven package
DE3820310A1 (de) * 1988-06-15 1989-12-21 Dirk Brunke Doppelwandiger behaelter zum erwaermen, kochen, servieren, transportieren, aufbewahren und warmhalten
EP0397597A1 (de) * 1989-05-08 1990-11-14 Alusuisse-Lonza Services Ag Verpackung und Verfahren zu deren Erwärmen bzw. Sterilisation
GB8921754D0 (en) * 1989-09-27 1989-11-08 Waddingtons Cartons Ltd Improvements relating to packaging containers
DE9105684U1 (de) * 1991-05-07 1991-06-27 Alcan Deutschland GmbH, 3400 Göttingen Verpackungsbehälter zum Erwärmen von Speisen
DE29919009U1 (de) * 1999-10-29 2001-03-15 Roncadin GmbH, 49084 Osnabrück Verpackung für Nahrungsmittel
GB2367226B (en) * 2000-09-15 2005-02-09 Ekco Packaging Ltd A container for food
DE102006036253B4 (de) * 2005-09-02 2008-06-05 Müller, Wolfgang Verpackungsbehälter zur Aufbewahrung und für die Mikrowellenbehandlung von Lebensmitteln
DE202006010773U1 (de) * 2006-07-11 2007-11-15 Wilhelm Mengede & Söhne Fleischwaren GmbH & Co. KG Packung und Verpackung für das Erwärmen eines Trägerelements und eines darauf angeordneten Lebensmittels in einem Induktionsofen
DE102008002989A1 (de) 2007-08-16 2009-02-19 Basf Se Elektrisch leitfähiges, magnetisches Kompositmaterial, Verfahren zu seiner Herstellung und seine Verwendung
CN115135584B (zh) * 2019-12-28 2024-08-02 艾利丹尼森零售信息服务有限公司 包含在微波食品包装中的两段式射频识别标签
CN114222387A (zh) * 2021-11-25 2022-03-22 南京航空航天大学 一种提高微波加热温度均匀性的方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3271169A (en) * 1963-02-01 1966-09-06 Litton Prec Products Inc Food package for microwave heating
US3302632A (en) * 1963-12-06 1967-02-07 Wells Mfg Company Microwave cooking utensil
GB1193623A (en) * 1966-11-11 1970-06-03 Paul Eisler Controlled Heating
FR1586626A (nl) * 1968-01-15 1970-02-27
US3701872A (en) * 1968-02-09 1972-10-31 Melvin L Levinson Heating and loading implement for microwave energy
NL7108793A (nl) * 1970-07-06 1972-01-10
FR2166554A5 (en) * 1971-12-29 1973-08-17 Funai Electric Co High frequency cooking process - gives scorch-grilled outer layer, using carbon wrapping
US3985992A (en) * 1973-06-27 1976-10-12 Teckton, Inc. Microwave heating tray
US3865301A (en) * 1973-11-15 1975-02-11 Trans World Services Partially shielded food package for dielectric heating
US4013798A (en) * 1973-11-21 1977-03-22 Teckton, Inc. Selectively ventable food package and micro-wave shielding device

Also Published As

Publication number Publication date
DE2745307C2 (nl) 1991-04-11
DE2745307A1 (de) 1978-04-13
MX145465A (es) 1982-02-19
JPS5345748A (en) 1978-04-24
FR2367003B1 (nl) 1982-05-28
NL7707116A (nl) 1978-04-11
AT362296B (de) 1981-04-27
AU2197277A (en) 1978-08-10
ATA712577A (de) 1980-09-15
BE859509A (fr) 1978-04-07
BR7704865A (pt) 1978-05-02
GB1592978A (en) 1981-07-15
AU506612B2 (en) 1980-01-17
IT1090092B (it) 1985-06-18
CH626581A5 (en) 1981-11-30
FR2367003A1 (fr) 1978-05-05

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Legal Events

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MKEX Expiry