Periscope finder

Details Periscope finder Periscope finder

1979-03-29

1980-11-25

Griffin, Donald A.

354152, G03B 1748, G03B 1912

Patent

active

042355419

ABSTRACT:
A periscope finder readily attached to a camera in place of the camera lens which includes a pair of telescopic tubular members having light reflecting mirrors at their free ends and being detachably joined to the camera lens at their inner ends.

REFERENCES:
patent: 1095285 (1914-05-01), Oliver
patent: 1486231 (1924-03-01), Cox
patent: 2845842 (1958-08-01), Leitz et al.
patent: 2933992 (1960-04-01), Bushnell et al.
patent: 4114171 (1978-09-01), Altman
patent: 4133607 (1979-01-01), Mansho
patent: 4137539 (1979-01-01), Maitani

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