Assignee
HELLER WERKZEUG GMBH GEB
DE·3 granted patents·42 citations·filing 1983–1987
Top patents by PatentIndex Score
3 records- 0167US4840519ADrill bit for hand drillsHELLER WERKZEUG GMBH GEB·Filed 1987·Granted Jun 20, 1989·22 cites·13 claims
- 0262US4702651ATool holder for drilling machines, drilling device as well as drills and set of drillsHELLER WERKZEUG GMBH GEB·Filed 1986·Granted Oct 27, 1987·17 cites·24 claims
- 0332US4531596ATool for boring an enlarged portion within the interior of a hole and a tiltable tool for completing that toolHELLER WERKZEUG GMBH GEB·Filed 1983·Granted Jul 30, 1985·3 cites·16 claims
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