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MANHATTAN ELECTRICAL SUPPLY CO

MANHATTAN
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US1769060A Electric sign and controlling circuits therefor Expired / Lapsed 1927-07-14 1930-07-01 0 Details
US1697339A Process of manufacturing electronic devices Expired / Lapsed 1925-11-09 1929-01-01 0 Details