Assignee
GIEN ABRAHAM
ZA·4 granted patents·34 citations·filing 1975–1991
Top patents by PatentIndex Score
4 records- 0148US3970153APneumatic percussion machinesGIEN ABRAHAM·Filed 1975·Granted Jul 20, 1976·16 cites·5 claims
- 0232US4753302AValveless pneumatic hammerGIEN ABRAHAM·Filed 1986·Granted Jun 28, 1988·8 cites·16 claims
- 0332US4094366APneumatic percussion machinesGIEN ABRAHAM·Filed 1976·Granted Jun 13, 1978·6 cites·5 claims
- 0427US5065823AExtraction device for pneumatically actuated drilling toolsGIEN ABRAHAM·Filed 1991·Granted Nov 19, 1991·4 cites·21 claims
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