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BERNARD H
BERNARD H. BLANK
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Abstract
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Description
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Patent number
: 264130
Filing date
: Mar 7, 1882
Issue date
: Sep 1882
Inventor
: BERNARD H. BLANK
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Referenced by
Patent Number
Title
Issue date
D275109
Binocular adjustment knob
Aug 14, 1984
D275110
Binocular adjustment knob
Aug 14, 1984
4659194
Binocular focusing mechanism
Apr 21, 1987
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