Assignee

ROCTEST LTEE LTD

CA·1 granted patent·37 citations·filing 1987–1987

Technology mixE21B1 G01B1

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1 record

0156US4719803ABorehole extensometer for monitoring relative mass displacementsROCTEST LTEE LTD·Filed 1987·Granted Jan 19, 1988·37 cites·14 claims

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