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National Lock Washer Co

National L
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2032794A Bus or car window construction Expired / Lapsed 1934-01-13 1936-03-03 0 Details
US1972156A Plug mounting Expired / Lapsed 1932-02-11 1934-09-04 0 Details
US1703092A Window construction Expired / Lapsed 1927-11-30 1929-02-26 0 Details