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2928097
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Information
Patent Grant
2928097
References
Source
Patent Number
2,928,097
Date Filed
Not available
Date Issued
Tuesday, March 15, 1960
64 years ago
CPC
B63C11/12 - Diving masks
B63C2011/126 - Diving masks comprising periscopes, mirrors, or the like; Periscopes, mirrors, or the like specially adapted for use with diving masks
US Classifications
002 - Apparel
351 - Optics: eye examining, vision testing and correcting
359 - Optical: systems and elements
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