Institut Gornogo Dela So An SSSR

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Novosibirsk, SU

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Patents Grantslast 30 patents

Information Patent Grant
Device for making holes in soil
- Patent number 4,785,898
- Issue date Nov 22, 1988
- Institut Gornogo Dela So An SSSR
- Alexandr D. Kostylev
- E21 - EARTH DRILLING MINING
Information Patent Grant
Reversible air-operated percussive action machine for driving holes...
- Patent number 4,708,211
- Issue date Nov 24, 1987
- Institut Gornogo Dela So An SSSR
- Evgeny I. Shemyakin
- E21 - EARTH DRILLING MINING
Information Patent Grant
Annular air-hammer apparatus for drilling holes
- Patent number 4,705,119
- Issue date Nov 10, 1987
- Institut Gornogo Dela So An SSSR
- Alexandr D. Kostylev
- E21 - EARTH DRILLING MINING