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Del Conveyor & Manufacturing Co

Del Convey
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2294586A Axial flow fan structure Expired / Lapsed 1941-08-04 1942-09-01 0 Details
US2219499A Propeller type fan construction Expired / Lapsed 1938-06-15 1940-10-29 0 Details