Assignee
RIVARD ETS
FR·3 granted patents·167 citations·filing 1987–1987
Top patents by PatentIndex Score
3 records- 0194US4812078AMechanized unit for digging a trench and laying elongate objectsRIVARD ETS·Filed 1987·Granted Mar 14, 1989·117 cites·12 claims
- 0275US4768297ATrenching wheel, more especially for digging trenchesRIVARD ETS·Filed 1987·Granted Sep 6, 1988·28 cites·8 claims
- 0367US4794709ADevice for digging trenchesRIVARD ETS·Filed 1987·Granted Jan 3, 1989·22 cites·9 claims
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