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3562879
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Information
Patent Grant
3562879
References
Source
Patent Number
3,562,879
Date Filed
Not available
Date Issued
Tuesday, February 16, 1971
53 years ago
CPC
B29C47/0028 - Multi-passage hollow articles
B28B3/24 - by reciprocating plunger
B28B3/269 - For multi-channeled structures
B28B21/52 - by extruding
B28B21/54 - Mouthpieces for shaping sockets, bends, or like peculiarly-shaped tubular articles
B29C47/20 - with annular opening
F16L9/08 - of concrete, cement, or asbestos cement, with or without reinforcement
F16L9/10 - of glass or ceramics
B29C47/0009 - characterised by the shape of the articles
B29L2031/60 - Multitubular or multicompartmented articles
US Classifications
425 - Plastic article or earthenware shaping or treating: apparatus
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