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Rifner W. Ganijew
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Moskau, SU
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last 30 patents
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Patent Grant
Installation for cleaning the zone near the drill hole
Patent number
5,311,955
Issue date
May 17, 1994
Wave Tec Ges.m.b.H.
Rifner W. Ganijew
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling apparatus
Patent number
5,303,784
Issue date
Apr 19, 1994
Wave Tec Ges.m.b.H.
Wsewolod S. Awdujewski
E21 - EARTH DRILLING MINING
Information
Patent Grant
Drilling apparatus of the cutting and shearing type
Patent number
5,220,966
Issue date
Jun 22, 1993
Wave Tec G.m.b.H.
Wsewolod S. Awdujewski
E21 - EARTH DRILLING MINING