U.S. patent number D336,546 [Application Number 07/674,716] was granted by the patent office on 1993-06-15 for facepiece. This patent grant is currently assigned to Gairns & Brother Inc.. Invention is credited to Walter J. Lybrand.
United States Patent | D336,546 |
Lybrand | June 15, 1993 |
Inventors: | Lybrand; Walter J. (Drexel Hill, PA) |
---|---|
Assignee: | Gairns & Brother Inc.
(Clifton, NJ) |
Appl. No.: | 07/674,716 |
Filed: | March 22, 1991 |
Current U.S. Class: | D24/110.2 |
Field of Search: | ;D29/6-9 ;128/206.17,206.15,206.12,205.27,205.24,205.22,143 ;2/9 |
D271144 | October 1983 | Gladberry |
2830584 | April 1958 | Hollmann et al. |
4377163 | March 1983 | Feathers |
5062421 | November 1991 | Burns et al. |
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