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公开(公告)号:US905116A
公开(公告)日:1908-11-24
申请号:US1908454142
申请日:1908-09-22
Applicant: SWALLOW JOSEPH G
Inventor: SWALLOW JOSEPH G
CPC classification number: B25B13/52
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公开(公告)号:US791954A
公开(公告)日:1905-06-06
申请号:US1904218305
申请日:1904-07-23
Applicant: SWALLOW JOSEPH G
Inventor: SWALLOW JOSEPH G
CPC classification number: G04C23/16 , Y10T74/115
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