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3419648
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Information
Patent Grant
3419648
References
Source
Patent Number
3,419,648
Date Filed
Not available
Date Issued
Tuesday, December 31, 1968
55 years ago
CPC
B29C44/3415 - Heating or cooling
B29C44/3426 - Heating by introducing steam in the mould
B29C44/3434 - by using a sheet, grid, etc. to distribute the steam in the mould
B29C44/445 - in the form of expandable granules, particles or beads
B29C67/222 - using expandable particles or beads as starting material
B29C33/10 - with incorporated venting means
B29K2025/00 - Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
US Classifications
264 - Plastic and nonmetallic article shaping or treating: processes
425 - Plastic article or earthenware shaping or treating: apparatus
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