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DR RALPH M GRANT ENGR CONSULTANTS Inc

DR RALPH M
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US4139302A Method and apparatus for interferometric deformation analys… Expired / Lapsed 1977-02-17 1979-02-13 22 Details
US4125314A Beam ratio control for holography Expired / Lapsed 1977-05-05 1978-11-14 6 Details