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AUTOMATIC ELECTRIC HEATER Co

AUTOMATIC
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US1889238A Solar heater Expired / Lapsed 1927-05-07 1932-11-29 0 Details
US1888620A Solar heater Expired / Lapsed 1927-05-07 1932-11-22 0 Details