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发明名称
Chuck
摘要
申请公布号
US1859042(A)
申请公布日期
1932.05.17
申请号
US19290391872
申请日期
1929.09.11
申请人
KOLAR JOHN J
发明人
KOLAR JOHN J.
分类号
B23B31/20
主分类号
B23B31/20
代理机构
代理人
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