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970160
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Information
Patent Grant
970160
References
Source
Patent Number
970,160
Date Filed
Not available
Date Issued
Tuesday, September 13, 1910
114 years ago
CPC
G02C5/12 - Nose pads Nose-engaging surfaces of bridges or rims
Y10S125/901 - forming piezoelectric crystals
US Classifications
351 - Optics: eye examining, vision testing and correcting
125 - Stone working
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