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公开(公告)号：US2023108A
公开(公告)日：1935-12-03
申请号：US53325831
申请日：1931-04-27
Applicant: DIAMOND POWER SPECIALITY
Inventor： THOMAS WILLIS P , FRANK BOWERS , GROSS CHARLES E
IPC: F28G1/16
CPC classification number: F28G1/166
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