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公开(公告)号:US1652594A
公开(公告)日:1927-12-13
申请号:US8167826
申请日:1926-01-16
Applicant: JAMES WALKER ROBERT
Inventor: JAMES WALKER ROBERT
IPC: A63B53/02
CPC classification number: A63B53/02
公开(公告)号:US1652594A
公开(公告)日:1927-12-13
申请号:US8167826
申请日:1926-01-16
Applicant: JAMES WALKER ROBERT
Inventor: JAMES WALKER ROBERT
IPC: A63B53/02
CPC classification number: A63B53/02