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发明名称
Method and apparatus for sorting and setting double-headed chaplets
摘要
申请公布号
US2170226(A)
申请公布日期
1939.08.22
申请号
US19370168708
申请日期
1937.10.13
申请人
COLUMBIA RADIATOR COMPANY
发明人
WATT WILLIAM H.
分类号
B22C21/14
主分类号
B22C21/14
代理机构
代理人
主权项
地址
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