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Patent applications and USPTO patent grants for Allen, Jr.; George A..The latest application filed is for "combined smoke gasket and intumescent expanding seal device for sliding doors".
Patent | Date |
---|---|
Combined smoke gasket and intumescent expanding seal device for sliding doors Grant D299,171 - Allen, Jr. December 27, 1 | 1988-12-27 |
Combined smoke gasket and intumescent expanding seal device for swinging doors Grant D293,935 - Allen, Jr. January 26, 1 | 1988-01-26 |
Combined smoke gasket and intumescent expanding seal device for sliding elevator doors and the like Grant D279,409 - Allen, Jr. June 25, 1 | 1985-06-25 |
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