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Holt Manufacturing Co

Holt Manuf
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US1407969A Land torpedo Expired / Lapsed 1918-09-26 1922-02-28 0 Details
US1386979A Transmission mechanism Expired / Lapsed 1915-08-16 1921-08-09 0 Details