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公开(公告)号：GB828450A
公开(公告)日：1960-02-17
申请号：GB3161156
申请日：1956-10-17
Applicant: DUNCAN STEWART & COMPANY LTD
Inventor： ARNOLD KENNETH SAMUEL
IPC: C13B10/06
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公开(公告)号：DE918260C
公开(公告)日：1954-09-23
申请号：DED0013698
申请日：1952-11-27
Applicant: DUNCAN STEWART & COMPANY LTD
Inventor： ARNOLD KENNETH SAMUEL
IPC: C13B10/06
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