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Patent applications and USPTO patent grants for Lang Fastener Corporation.The latest application filed is for "apparatus for making a twin-wall, internally corrugated plastic structural part with a smooth non-cellular skin".
Patent | Date |
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Apparatus for making a twin-wall, internally corrugated plastic structural part with a smooth non-cellular skin Grant 4,555,225 - Hendry November 26, 1 | 1985-11-26 |
Method of making a twin-wall internally corrugated plastic structural part with a smooth non-cellular skin Grant 4,474,717 - Hendry October 2, 1 | 1984-10-02 |
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