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发明名称
Procédé et dispositifs pour faciliter l'établissement des portages de surfaces frottantes
摘要
申请公布号
FR746760(A)
申请公布日期
1933.06.06
申请号
FRD746760
申请日期
1932.02.23
申请人
LES SEGMENTS AMEDEE BOLLEE
发明人
分类号
F16J9/26
主分类号
F16J9/26
代理机构
代理人
主权项
地址
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