1979-02-28
1980-12-09
Griffin, Donald A.
354 53, 354224, 354 60R, G03B 700, G03B 1912, G03B 1720, G03B 1308
Patent
active
042381517
ABSTRACT:
A support framework for a pentaprism is provided with hooks so that when a holding plate having resilient portions formed therein is brought into engagement at its eyes with the respective hooks over the pentaprism, it is engaged into the adjusted position by making use of the resilient characteristics of the holding plate.
REFERENCES:
patent: 2539581 (1951-01-01), Holden
patent: 2722214 (1955-11-01), Borde
patent: 2729846 (1956-01-01), Reed
patent: 3218948 (1965-11-01), Kuppenbender
patent: 3732775 (1973-05-01), Warstat
patent: 3846805 (1974-11-01), Kiyohara et al.
patent: 3999194 (1976-12-01), Imura et al.
Canon Kabushiki Kaisha
Griffin Donald A.
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