Andron Trofimovich Karavaev

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Novosibirisk, SU

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Patents Grantslast 30 patents

Information Patent Grant
Reversiele percussion device
- Patent number 4,819,741
- Issue date Apr 11, 1989
- Alexei D. Terskov
- E21 - EARTH DRILLING MINING
Information Patent Grant
Machine for driving holes in the ground
- Patent number 4,570,723
- Issue date Feb 18, 1986
- Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk SSSR
- Alexandr D. Kostylev
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus for sinking wells in the ground
- Patent number 4,398,609
- Issue date Aug 16, 1983
- Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk SSSR
- Andron T. Karavaev
- E21 - EARTH DRILLING MINING
Information Patent Grant
Pneumatic reversible impact device for driving holes in soil
- Patent number 4,132,277
- Issue date Jan 2, 1979
- Konstantin K. Tupitsyn
- E21 - EARTH DRILLING MINING
Information Patent Grant
Percussive device for driving holes in soil
- Patent number 3,952,813
- Issue date Apr 27, 1976
- Nikolai Prokhorovich Chepurnoi
- E21 - EARTH DRILLING MINING