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公开(公告)号:US1275238A
公开(公告)日:1918-08-13
申请号:US20938217
申请日:1917-12-29
Applicant: FREEMAN LEON
Inventor: FREEMAN LEON
CPC classification number: A42B1/201
公开(公告)号:US1275238A
公开(公告)日:1918-08-13
申请号:US20938217
申请日:1917-12-29
Applicant: FREEMAN LEON
Inventor: FREEMAN LEON
CPC classification number: A42B1/201