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发明名称
Roller bearing header slide
摘要
申请公布号
US2918333(A)
申请公布日期
1959.12.22
申请号
US19570668936
申请日期
1957.07.01
申请人
THE NATIONAL MACHINERY COMPANY
发明人
FRIEDMAN ROBERT G.
分类号
B21J13/04;F16C29/04
主分类号
B21J13/04
代理机构
代理人
主权项
地址
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