Afocal telescope converter attachment for a binocular or similar

Details Afocal telescope converter attachment for a binocular or similar Afocal telescope converter attachment for a binocular or similar

1988-11-25

1990-11-13

Word, A. Hugo

Photography and optical equipment

Optical article not elsewhere specified

Telescope

D16133

Patent

active

D03120872

REFERENCES:
patent: D194129 (1962-11-01), Baab et al.
patent: D271698 (1983-12-01), Shishido
patent: D275496 (1984-09-01), Condon
patent: 2428719 (1947-10-01), Nemeth
patent: 4448500 (1984-05-01), Marling et al.
patent: 4749271 (1988-06-01), Nagler
Sky and Telescope Magazine, Feb. 1983, bottom of p. 106, Diagonal Prism Attachment on Questar.RTM. Telescope.
Clave Beamsplitter Attachment, Brochure.
1985 Spectrum Catalog, top of p. 11, Star Diagonal #02373.
1985 Spectrum Catalog, bottom of p. 16, Tele-Lens to Spotting Scope Converter.
1985 Spectrum Catalog, p. 21, Kenko Spotting Scopes.
Sky and Telescope Magazine, Oct. 1985, back cover, Diagonal Mirror and Prism Attachments on Celestron.RTM. Telescope and Finder Scope.
1981 Celestron Catalog, p. 43, center of page, Off-Axis Guide Body.

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