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3782104
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Information
Patent Grant
3782104
References
Source
Patent Number
3,782,104
Date Filed
Not available
Date Issued
Tuesday, January 1, 1974
50 years ago
CPC
G02B27/288 - Filters employing polarising elements
G04B19/30 - Illumination of dials or hands
G04B45/0023 - Inscriptions or pictures moved by the clockwork, e.g.for advertising
US Classifications
368 - Horology: time measuring systems or devices
040 - Card, picture, or sign exhibiting
359 - Optical: systems and elements
968 - Horology
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