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Patent applications and USPTO patent grants for Warwick Hanger Co..The latest application filed is for "bell type pipe hanger".
Patent | Date |
---|---|
Bell type pipe hanger Grant D489,000 - Ellery April 27, 2 | 2004-04-27 |
Bell-type pipe hanger Grant D486,729 - Ellery February 17, 2 | 2004-02-17 |
Pipe hanger Grant D477,212 - Ellery July 15, 2 | 2003-07-15 |
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