U.S. patent number D310,676 [Application Number 07/155,003] was granted by the patent office on 1990-09-18 for multiple function image switching attachment for a telescope or similar article. Invention is credited to Jeffrey R. Charles.
United States Patent | D310,676 |
Charles | September 18, 1990 |
Inventors: | Charles; Jeffrey R. (Camp Verde, AZ) |
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Appl. No.: | 07/155,003 |
Filed: | February 10, 1988 |
Current U.S. Class: | D16/134; D16/132 |
Field of Search: | ;D16/134,132,136,130,137,207,208,210 ;350/557,574,502,563 ;354/79 |
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Sky and Telescope Magazine, Feb. 1983, bottom of p. 106, Questar Telescope and Diagonal. . Clave Beamsplitter.. |
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