-
-
-
Pneumatic impact mechanism
-
Patent number 4,160,486
-
Issue date Jul 10, 1979
-
Alexandr D. Kostylev
-
B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
-
-
-
Method of forming castings in holes
-
Patent number 4,088,720
-
Issue date May 9, 1978
-
Alexandr D. Kostvlev
-
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
-
Pneumatic impact devices
-
Patent number 4,070,948
-
Issue date Jan 31, 1978
-
Khaim Berkovich Tkach
-
E21 - EARTH DRILLING MINING
-
-
-
Soil sampler
-
Patent number 3,955,631
-
Issue date May 11, 1976
-
Alexandr Dmitrievich Kostylev
-
E21 - EARTH DRILLING MINING
-
-
Impact action mechanism
-
Patent number 3,941,101
-
Issue date Mar 2, 1976
-
Alexandr Dmitrievich Kostylev
-
F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS