U.S. patent number D247,574 [Application Number 05/661,998] was granted by the patent office on 1978-03-21 for saliva ejector. Invention is credited to John Harry Orsing.
United States Patent | D247,574 |
Orsing | March 21, 1978 |
Inventors: | Orsing; John Harry (S-253 71 Helsingborg, SW) |
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Appl. No.: | 05/661,998 |
Filed: | February 27, 1976 |
Current U.S. Class: | D24/112; 433/91 |
Current International Class: | D2402 |
Field of Search: | ;128/277,278,276 ;32/33 ;D24/10 |
D228130 | August 1973 | Schachet et al. |
D239116 | March 1976 | Johnson |
3541583 | November 1970 | Deuschle |
3802081 | April 1974 | Rogers |
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