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公开(公告)号:US1241666A
公开(公告)日:1917-10-02
申请号:US10838416
申请日:1916-07-10
Applicant: SAYWELL ALFRED J
Inventor: SAYWELL ALFRED J
CPC classification number: D07B2201/1096
公开(公告)号:US1241666A
公开(公告)日:1917-10-02
申请号:US10838416
申请日:1916-07-10
Applicant: SAYWELL ALFRED J
Inventor: SAYWELL ALFRED J
CPC classification number: D07B2201/1096