Patent
1990-08-29
1991-11-12
Henry, Jon W.
G02B 706, G02B 717
Patent
active
050642790
ABSTRACT:
A binocular telescope having a double-jointed bridge and a central joint focusing means for focusing and diopter adjustment with a bipartite bridge, the two bridge members being connected via a center clutch shaft.
REFERENCES:
patent: 2811895 (1957-11-01), Jenson
patent: 3712704 (1973-01-01), Sato
D. Swarovski & Co.
Henry Jon W.
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