Assignee
FENYVESI JANOS
HU·2 granted patents·149 citations·filing 1985–1987
Top patents by PatentIndex Score
2 records- 0186US4735270ADrillstem motion apparatus, especially for the execution of continuously operational deepdrillingFENYVESI JANOS·Filed 1985·Granted Apr 5, 1988·129 cites·3 claims
- 0242US4848455AFlexible drill rod feeding apparatus for quick rotary deep drillingFENYVESI JANOS·Filed 1987·Granted Jul 18, 1989·20 cites·12 claims
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