Diaphragm control attachment

Details Diaphragm control attachment Diaphragm control attachment

1985-10-18

1987-05-19

Griffin, Donald A.

350449, G03B 300, G02B 900

Patent

active

046662774

ABSTRACT:
A diaphragm control attachment for use with an interchangeable optical device detachably attached to a main optical device.

REFERENCES:
patent: 2164526 (1939-07-01), Kimmich
patent: 2925765 (1960-02-01), Gebele
patent: 3722390 (1973-03-01), Schlapp et al.

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