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CHICAGO ELECTRIC MANUFACTURING Co

CHICAGO EL
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2234319A Fan blade and hub assembly Expired / Lapsed 1936-10-03 1941-03-11 0 Details
US2228224A Portable ventilator Expired / Lapsed 1938-06-30 1941-01-07 0 Details