Multiple function image switching attachment for a telescope or

Details Multiple function image switching attachment for a telescope or Multiple function image switching attachment for a telescope or

1988-02-10

1990-09-18

Word, A. Hugo

Photography and optical equipment

Optical article not elsewhere specified

Lens or objective

D16132

Patent

active

D03106764

REFERENCES:
patent: D194129 (1962-11-01), Baab et al.
patent: D253476 (1979-11-01), Schneck et al.
patent: D265482 (1982-07-01), Bressler
patent: D268768 (1983-04-01), Melsheimer et al.
patent: D271698 (1983-12-01), Shishido
patent: D275496 (1984-09-01), Condon
patent: 2753760 (1956-07-01), Braymer
patent: 2948189 (1961-08-01), Fischer
patent: 3468597 (1969-09-01), Jones
patent: 3645602 (1972-02-01), Clave et al.
patent: 3871741 (1975-03-01), Clave et al.
patent: 3898678 (1975-08-01), Walworth
patent: 3900858 (1975-08-01), McCann et al.
patent: 4143938 (1979-03-01), Feinbloom
patent: 4448500 (1984-05-01), Marling et al.
patent: 4749271 (1988-06-01), Nagler
Sky and Telescope Magazine, Feb. 1983, bottom of p. 106, Questar Telescope and Diagonal.
Clave Beamsplitter.

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