U.S. patent number D388,953 [Application Number D/059,769] was granted by the patent office on 1998-01-13 for expandable key safe. This patent grant is currently assigned to Cobbs Manufacturing Company. Invention is credited to Charles A. Haas, Jerome J. Hartman, John E. Schenken, Thomas R. Steinhagen.
United States Patent | D388,953 |
Hartman , et al. | January 13, 1998 |
Inventors: | Hartman; Jerome J. (Carlisle, IA), Steinhagen; Thomas R. (West Des Moines, IA), Haas; Charles A. (Des Moines, IA), Schenken; John E. (West Des Moines, IA) |
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Assignee: | Cobbs Manufacturing Company
(Des Moines, IA) |
Appl. No.: | D/059,769 |
Filed: | September 16, 1996 |
Current U.S. Class: | D3/212 |
Current International Class: | 0301 |
Field of Search: | ;D3/207-211,221 ;D8/347 ;24/3.6 ;70/456.12,457 |
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2854132 | September 1958 | Bjerknes |
2874740 | February 1959 | Mageau, Jr. |
4281527 | August 1981 | Leopoldi et al. |
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