Inventor

CHEREDNIKOV EVGENY N

4 patents

⚠️ This page may combine multiple inventors who share the name “CHEREDNIKOV EVGENY N”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

INST GORNOGO DELA SIBIRSKOGO O

2 patents

US4174758ANov 20, 1979

Percussive action pneumatic device for drilling holes in soil

INST GORNOGO DELA SIBIRSKOGO O0 citations49

US4398609AAug 16, 1983

Apparatus for sinking wells in the ground

INST GORNOGO DELA SIBIRSKOGO O0 citations47

TUPITSYN KONSTANTIN K

1 patent

US4132277AJan 2, 1979

Pneumatic reversible impact device for driving holes in soil

TUPITSYN KONSTANTIN K22 citations77

TERSKOV ALEXEI D

1 patent

US4819741AApr 11, 1989

Reversiele percussion device

TERSKOV ALEXEI D5 citations52