Pneumatic percussion drill for driving holes through soil - has hammer strikingin line with own centre of gravity offset from axis
N. P. CHEPURNOI, A. D. KOSTYLEV, K. S. GURKOV, K. K. TUPITSYN, S. K. TUPITSYN, N. G. NAZAROV, V. D. PLAVSKIKH, K. B. TKACH, E. N. CHEREDNIKOV, A. N. GALBINSHTEIN, M. V. BORSHTEIN, A. T. KARAVAEV, V. A. MENZOROV ET A. M. MAKAROV
Year of Publication 05.11.1976
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Year of Publication 05.11.1976
Patent
NO133081C
MALBERT P E, MIKUSHIN D P, TERSKOV A D, LEGECHEV N L, GURKOV K S, NAZAROV N G, ALKASAROV J I, TKACH K B, KOSTYLEV A D, GALBINSHTEIN A N, REINSBURG A M, BELOV L S, LAVROV N S, BORSHTEIN M V
Year of Publication 03.03.1976
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Year of Publication 03.03.1976
Patent
NO133081B
MALBERT P E, MIKUSHIN D P, TERSKOV A D, LEGECHEV N L, GURKOV K S, NAZAROV N G, ALKASAROV J I, TKACH K B, KOSTYLEV A D, GALBINSHTEIN A N, REINSBURG A M, BELOV L S, LAVROV N S, BORSHTEIN M V
Year of Publication 24.11.1975
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Year of Publication 24.11.1975
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