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经营范围
发明名称
Roller bearing
摘要
申请公布号
US1742513(A)
申请公布日期
1930.01.07
申请号
US19270174331
申请日期
1927.03.10
申请人
LAURENCE LEONARD
发明人
LEONARD LAURENCE
分类号
F16C9/04;F16C19/44
主分类号
F16C9/04
代理机构
代理人
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地址
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