Bill Jack Scientific Instrument Co

Bill Jack

Active Patents

Total Holdings

Patent Holdings

Patent No.	Title	Status	Filing Date	Grant Date	Actions
US2916670A	Electronic flasher system	Expired / Lapsed	1957-03-15	1959-12-08	Details
US2856238A	Method and means for suspension of a rotatable object in sp…	Expired / Lapsed	1955-05-12	1958-10-14	Details
US2677800A	Electrical control device	Expired / Lapsed	1950-10-04	1954-05-04	Details