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公开(公告)号:US1204964A
公开(公告)日:1916-11-14
申请号:US9278616
申请日:1916-04-21
Applicant: FARBER SAMUEL , CROUCH GEORGE G
Inventor: FARBER SAMUEL , CROUCH GEORGE G
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公开(公告)号:US867084A
公开(公告)日:1907-09-24
申请号:US1907370052
申请日:1907-04-24
Applicant: SAWTELL LEON P , FIELD THADDEUS S , CROUCH GEORGE G
Inventor: SAWTELL LEON P , FIELD THADDEUS S , CROUCH GEORGE G
CPC classification number: A01L1/04
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