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发明名称
Friction device
摘要
申请公布号
US2494300(A)
申请公布日期
1950.01.10
申请号
US19450597507
申请日期
1945.06.04
申请人
AMERICAN STEEL FOUNDRIES
发明人
LIGHT DAVID M.
分类号
B61F5/12
主分类号
B61F5/12
代理机构
代理人
主权项
地址
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