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发明名称
Ring loading fixture
摘要
申请公布号
US2856678(A)
申请公布日期
1958.10.21
申请号
US19540467744
申请日期
1954.11.09
申请人
PERFECT CIRCLE CORPORATION
发明人
JOHNSON JESSE W.
分类号
B25B27/12
主分类号
B25B27/12
代理机构
代理人
主权项
地址
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