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Industrial Research Corp

Industrial
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US1955110A Power transmission system Expired / Lapsed 1921-06-15 1934-04-17 0 Details
US1618816A Light-control switch Expired / Lapsed 1918-05-03 1927-02-22 0 Details