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公开(公告)号：US1955522A
公开(公告)日：1934-04-17
申请号：US54740631
申请日：1931-06-27
Applicant: IRONSIDES COMPANY
Inventor： WILLIAMS ROBERT C , RUSSELL HOWARD W
IPC: C10M175/04
CPC classification number: C10M175/04
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