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发明名称
Dirtproof bearing
摘要
申请公布号
US2318097(A)
申请公布日期
1943.05.04
申请号
US19410417613
申请日期
1941.11.03
申请人
RICHMOND RALPH W
发明人
RICHMOND RALPH W.
分类号
F16C33/74
主分类号
F16C33/74
代理机构
代理人
主权项
地址
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