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发明名称
HARD WEARING SYSTEMS IN WHICH TWO OR MORE MEMBERS FRICTIONALLY ENGAGE WITH EACH OTHER
摘要
申请公布号
GB338528(A)
申请公布日期
1930.11.18
申请号
GB19290015051
申请日期
1929.05.14
申请人
HERMAN JOHAN VAN ROYEN
发明人
ROYEN VAN HERMAN JOHAN
分类号
F16D69/02
主分类号
F16D69/02
代理机构
代理人
主权项
地址
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