Boris F. Bragin

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Voroshilovgrad, SU

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Patents Grantslast 30 patents

Information Patent Grant
Gate valve
- Patent number 4,671,487
- Issue date Jun 9, 1987
- Voroshilovgradsky Mashinostroitelny Instit
- Boris F. Bragin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Gate valve
- Patent number 4,635,900
- Issue date Jan 13, 1987
- Voroshilovgradsky Mashinostroitelny Institut
- Boris F. Bragin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Gate valve
- Patent number 4,534,540
- Issue date Aug 13, 1985
- Voroshilovgradsky Mashinostroitelny Institut
- Boris F. Bragin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Valve housing
- Patent number 4,506,865
- Issue date Mar 26, 1985
- Boris F. Bragin
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Gate valve
- Patent number 4,505,452
- Issue date Mar 19, 1985
- Boris F. Bragin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...