Assignee
CLAING JEAN LOUIS
2 granted patents·10 citations·filing 1991–1992
Technology mixE02D2
Top patents by PatentIndex Score
2 records- 0123US5308189AGripping device for retaining a ring member supporting a manhole coverCLAING JEAN LOUIS·Filed 1992·Granted May 3, 1994·6 cites·7 claims
- 0220US5078539ABendable raising structure for manhole cover with predetermined weak spotCLAING JEAN LOUIS·Filed 1991·Granted Jan 7, 1992·4 cites·5 claims
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