Boris A. Peredkov

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Moscow, SU

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Patents Grantslast 30 patents

Information Patent Grant
Reduction gear of electronic wristwatch with stepping motor and swe...
- Patent number 4,378,957
- Issue date Apr 5, 1983
- Daniel D. Malkin
- G04 - HOROLOGY
Information Patent Grant
Instantaneous calendar device for timepieces
- Patent number 4,240,249
- Issue date Dec 23, 1980
- Daniel D. Malkin
- G04 - HOROLOGY