David I. Shafirkin

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Moscow, SU

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Patents Grantslast 30 patents

Information Patent Grant
Device for locking and sealing of objects
- Patent number 5,080,522
- Issue date Jan 14, 1992
- David I. Shafirkin
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Coding assembly for locklike devices
- Patent number 5,024,071
- Issue date Jun 18, 1991
- David I. Shafirkin
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES