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公开(公告)号:US1756474A
公开(公告)日:1930-04-29
申请号:US22870427
申请日:1927-10-25
Applicant: AMERICAN RUBBER COMPANY
Inventor: RAYMOND HOWARD A
IPC: A43B3/16
CPC classification number: A43B3/16
公开(公告)号:US1756474A
公开(公告)日:1930-04-29
申请号:US22870427
申请日:1927-10-25
Applicant: AMERICAN RUBBER COMPANY
Inventor: RAYMOND HOWARD A
IPC: A43B3/16
CPC classification number: A43B3/16