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1982-12-03
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1987-09-21
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1945-11-20
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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
Mechanical toggle and fluid actuated ram for powder compacting press
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1974-03-26
Process of manufacturing open or closed packagings of foam plastics,preferably foam polystyrene
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1948-01-13
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1992-11-24
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1941-09-30
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1961-08-15
Press for heat-sealing cheese and the like
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Closing and sealing of collapsible tubes
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