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1987-05-05
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1990-05-07
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1969-09-09
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1982-12-03
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1976-04-09
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1987-09-21
삼중요철 바닥면을 가진 주방용기 및 그 제조방법
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1977-11-23
Heat welding polyolefinic parts
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1974-01-15
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1969-04-15
Method of heat sealing the container edges of plastic foam material by flame contact
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1983-05-11
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2005-03-31
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1974-03-26
Process of manufacturing open or closed packagings of foam plastics,preferably foam polystyrene
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1945-02-06
Liquid sealing method
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1992-12-04
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1948-01-13
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1964-09-15
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1992-11-24
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1961-08-15
Press for heat-sealing cheese and the like
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1937-12-21
Closing and sealing of collapsible tubes
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1974-03-18
JPS6031682B2
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1985-07-24
内容物を充填した袋のシ−ル方法
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1976-02-05
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1974-03-25
Разъемная пресс-форма для гидростатического прессования порошков
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1987-09-05