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发明名称
Perfectionnements aux haveuses et machines analogues ou aux machines combinées pour le havage et le chargement
摘要
申请公布号
FR835317(A)
申请公布日期
1938.12.19
申请号
FRD835317
申请日期
1938.03.16
申请人
NEWTON, CHAMBERS & COMPANY LIMITED
发明人
LEWIS OSWALD FLOYD
分类号
E21C31/00
主分类号
E21C31/00
代理机构
代理人
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