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发明名称
Schraemkette fuer Schraemmaschinen mit durch Kugelgelenke verbundenen Gliedern
摘要
申请公布号
DE1012881(B)
申请公布日期
1957.08.01
申请号
DE1955H022740
申请日期
1955.01.20
申请人
AUSTIN HOY AND COMPANY LIMITED
发明人
PROCTOR SIDNEY ERNEST
分类号
E21C25/36;F16G13/10
主分类号
E21C25/36
代理机构
代理人
主权项
地址
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