Mikhail Jurievich Bondar

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Odessa, SU

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Patents Grantslast 30 patents

Information Patent Grant
Air-operated reversible percussive action machine
- Patent number 4,733,731
- Issue date Mar 29, 1988
- Khaim B. Tkach
- E21 - EARTH DRILLING MINING
Information Patent Grant
Reversible percussive action machine
- Patent number 4,629,008
- Issue date Dec 16, 1986
- Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk SSSR
- Alexandr D. Kostylev
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method of making holes in the soil and apparatus for performing thi...
- Patent number 4,440,240
- Issue date Apr 3, 1984
- Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk SSSR
- Alexandr D. Kostylev
- E21 - EARTH DRILLING MINING
Information Patent Grant
Reversible, percussive device for ground perforation
- Patent number 4,171,727
- Issue date Oct 23, 1979
- Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk S S S R
- Khaim B. Tkach
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pneumatic impact devices
- Patent number 4,070,948
- Issue date Jan 31, 1978
- Khaim Berkovich Tkach
- E21 - EARTH DRILLING MINING