Plastic article or earthenware shaping or treating: apparatus – Preform reshaping or resizing means: or vulcanizing means... – Including shaping means comprising fluid pressure contacting...
Patent
1981-03-06
1983-04-12
Pavelko, Thomas P.
Plastic article or earthenware shaping or treating: apparatus
Preform reshaping or resizing means: or vulcanizing means...
Including shaping means comprising fluid pressure contacting...
425186, 249103, B29C 1703
Patent
active
043796877
ABSTRACT:
A vacuum forming mold for reshaping sheets of thermoplastic material is provided with means to impart indicia to the articles produced. Such indicia can be molded into the article by providing interchangeable members which are insertable and removeable from the mold. By arranging the members in different combinations any desired numbering can be obtained.
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patent: 3496607 (1970-02-01), Larson
patent: 3986804 (1976-10-01), Haag
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Mickelson Dan
Wilson Robert E.
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