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PHYSICISTS RES Co

PHYSICISTS

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2621224A	Mechanical-electrical displacement converter	Expired / Lapsed	1949-10-08	1952-12-09	0	Details
US2468648A	Bearing testing device	Expired / Lapsed	1944-07-04	1949-04-26	0	Details
US2330801A	Tracer mechanism for investigating surface irregularities	Expired / Lapsed	1939-12-26	1943-10-05	0	Details
US2240278A	Instrument for recording or measuring surface irregularities	Expired / Lapsed	1936-09-09	1941-04-29	0	Details