Assignee
HOCHSTRASSER ELISABET
2 granted patents·11 citations·filing 1975–1984
Top patents by PatentIndex Score
2 records- 0143US3965999ADrilling grab for pile foundations and well boreholesHOCHSTRASSER ELISABET·Filed 1975·Granted Jun 29, 1976·9 cites·8 claims
- 0224US4624324ATurning mechanism operating alternately in opposite directions to facilitate the driving in or extracting of pilesHOCHSTRASSER ELISABET·Filed 1984·Granted Nov 25, 1986·2 cites·10 claims
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