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公开(公告)号:US645681A
公开(公告)日:1900-03-20
申请号:US1899717144
申请日:1899-05-17
Applicant: CHAPMAN MFG COMPANY
Inventor: CHAPMAN ALBERT H
CPC classification number: F25C5/12 , B02C2201/066
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公开(公告)号:US645680A
公开(公告)日:1900-03-20
申请号:US1899708800
申请日:1899-03-13
Applicant: CHAPMAN MFG COMPANY
Inventor: CHAPMAN ALBERT H
CPC classification number: A01K39/026
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