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公开(公告)号:US1277350A
公开(公告)日:1918-09-03
申请号:US15303617
申请日:1917-03-07
Applicant: EASTERN MFG COMPANY
Inventor: ADAMS ARCHIBALD A
CPC classification number: D21D1/02
公开(公告)号:US1277350A
公开(公告)日:1918-09-03
申请号:US15303617
申请日:1917-03-07
Applicant: EASTERN MFG COMPANY
Inventor: ADAMS ARCHIBALD A
CPC classification number: D21D1/02