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公开(公告)号:US1396469A
公开(公告)日:1921-11-08
申请号:US39889620
申请日:1920-07-26
Applicant: STEELE MARY J
Inventor: STEELE MARY J
IPC: G01F11/26
CPC classification number: G01F11/263
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公开(公告)号:US1486200A
公开(公告)日:1924-03-11
申请号:US56489822
申请日:1922-05-31
Applicant: STEELE MARY J
Inventor: STEELE MARY J
IPC: B67D3/00
CPC classification number: B67D3/00
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