U.S. patent number D342,720 [Application Number D/001,546] was granted by the patent office on 1993-12-28 for foot switch. This patent grant is currently assigned to Siemens Aktiengesellschaft. Invention is credited to Hans Helfrich, Hermann Landgraf, Tilman Phleps.
United States Patent | D342,720 |
Phleps , et al. | December 28, 1993 |
Inventors: | Phleps; Tilman (Lorsch, DE), Landgraf; Hermann (Lorsch, DE), Helfrich; Hans (Mannheim, DE) |
---|---|
Assignee: | Siemens Aktiengesellschaft
(Munich, DE) |
Appl. No.: | D/001,546 |
Filed: | November 18, 1992 |
May 18, 1992 [WO] | DM001792 | |||
Current U.S. Class: | D13/167 |
Field of Search: | ;D13/158,167,171 ;200/61.09,86.5 |
D148589 | February 1948 | Stone et al. |
D210219 | February 1968 | Dreyfus et al. |
2804838 | September 1957 | Moser |
3353424 | November 1967 | Peterson et al. |
Linemaster foot switcheson p. 225 of Allied Electronics catalog No. 680, 1968. . Foot switch on p. 101 of Radio Shack catalog .COPYRGT.1990.. |
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