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公开(公告)号：CA347792A
公开(公告)日：1935-01-22
申请号：CA347792D
Applicant: STEAD RAIL ANCHOR COMPANY , B J COGHLIN AND COMPANY LTD
Inventor： MCCONKEY THOMAS CLARKSON , PICARD GEORGES
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公开(公告)号：CA259667A
公开(公告)日：1926-04-06
申请号：CA259667D
Applicant: STEAD RAIL ANCHOR COMPANY , B J COGHLIN AND COMPANY
Inventor： MCCONKEY THOMAS CLARKSON , PICARD GEORGE
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