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公开(公告)号:US898665A
公开(公告)日:1908-09-15
申请号:US1908434076
申请日:1908-05-21
Applicant: C T HAM MFG COMPANY
Inventor: MACBETH GEORGE A
CPC classification number: F21V5/00
公开(公告)号:US898665A
公开(公告)日:1908-09-15
申请号:US1908434076
申请日:1908-05-21
Applicant: C T HAM MFG COMPANY
Inventor: MACBETH GEORGE A
CPC classification number: F21V5/00