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Heyman Manufacturing Co

Heyman Man
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3562847A Round split bushing Expired / Lapsed 1969-03-04 1971-02-16 0 Details
US3001007A Self-locking bushing Expired / Lapsed 1959-11-13 1961-09-19 0 Details
US2727299A Process for making electrical terminals Expired / Lapsed 1953-02-27 1955-12-20 0 Details