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Inventor
PETREEV ANATOLY M
SU
2 patents
Patents
2 patents
US4653596A
Mar 31, 1987
Percussive air tool
INST GORNOGO DELA SIBIRSKOGO O
5 citations
57
US4440240A
Apr 3, 1984
Method of making holes in the soil and apparatus for performing this method
INST GORNOGO DELA SIBIRSKOGO O
0 citations
41