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发明名称
Chuck
摘要
申请公布号
US2145875(A)
申请公布日期
1939.02.07
申请号
US19370134622
申请日期
1937.04.02
申请人
WILLIAM K. STAMETS
发明人
HIBBARD ROBERT L.
分类号
B23B31/28
主分类号
B23B31/28
代理机构
代理人
主权项
地址
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