Assignee
SMITH ALBERT W
2 granted patents·27 citations·filing 1983–1983
Technology mixE21B1
Top patents by PatentIndex Score
2 records- 0151US4496006ACylinder displaceable power swivel for a portable drilling apparatus _and a process thereforSMITH ALBERT W·Filed 1983·Granted Jan 29, 1985·23 cites·9 claims
- 0242USD282368SCombined erectable hydraulic drilling rig and transport trailerSMITH ALBERT W·Filed 1983·Granted Jan 28, 1986·4 cites·1 claims
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