Assignee

COURSER INC

US3 patents

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US4461576AJul 24, 1984

Optical measuring system

COURSER INC77 citations95

US4963731AOct 16, 1990

Optical level measurement system

COURSER INC43 citations92

US4524282AJun 18, 1985

Electro-optical level detector

COURSER INC30 citations92