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发明名称
Friction material
摘要
申请公布号
US2470269(A)
申请公布日期
1949.05.17
申请号
US19450610663
申请日期
1945.08.13
申请人
THE CLEVELAND GRAPHITE BRONZE COMPANY
发明人
SCHAEFER RALPH
分类号
C22C32/00;F16D69/02
主分类号
C22C32/00
代理机构
代理人
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地址
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