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公开(公告)号:US938806A
公开(公告)日:1909-11-02
申请号:US1909474067
申请日:1909-01-25
Applicant: C G PHILLIPS , WILLOUR LE ROY
Inventor: WILLOUR LE ROY
CPC classification number: B66F3/02
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公开(公告)号:US842988A
公开(公告)日:1907-02-05
申请号:US1906318029
申请日:1906-05-21
Applicant: WILLOUR LE ROY
Inventor: WILLOUR LE ROY
CPC classification number: D06F53/00
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