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Inventor:
Katsuma; Syuji
Address:
Tokyo, JP
No. of patents:
1
Patents:












Patent Number Title Of Patent Date Issued
5000556 Binocular telescope with auxiliary lens system March 19, 1991
Auxiliary lens cylinders constituting a tele-or wide-conversion lens system can be held in and away from the front of the objective lenses of a binocular telescope, so that the main lens system of the binocular telescope can be converted to a highly magnifying tele-conversion or wide










 
 
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