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3570375
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Information
Patent Grant
3570375
References
Source
Patent Number
3,570,375
Date Filed
Not available
Date Issued
Tuesday, March 16, 1971
53 years ago
CPC
B29C66/004 - Preventing sticking together
B29C65/02 - by heating, with or without pressure
B29C65/10 - using hot gases (
B29C66/1122 - Single lap to lap joints
B29C66/4322 - by joining a single sheet to itself
B31B19/64 - by applying heat or pressure
B31B19/84 - Forming valves or applying valve inserts
B31B2219/603 - by applying heat or pressure
B31B2219/9067 - Applying patches or flexible valve inserts
US Classifications
493 - Manufacturing container or tube from paper
156 - Adhesive bonding and miscellaneous chemical manufacture
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