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经营范围
发明名称
Perfectionnements aux chaînes coupantes destinées aux haveuses
摘要
申请公布号
FR1017691(A)
申请公布日期
1952.12.17
申请号
FRD1017691
申请日期
1950.05.12
申请人
发明人
TENA CANDIDO DE TENA Y
分类号
E21C25/40
主分类号
E21C25/40
代理机构
代理人
主权项
地址
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