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发明名称
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摘要
申请公布号
US2820117(A)
申请公布日期
1958.01.14
申请号
US19550520325
申请日期
1955.07.06
申请人
AMERICAN MACHINE AND METALS, INC.
发明人
WAITE RALPH D.
分类号
H01H35/32
主分类号
H01H35/32
代理机构
代理人
主权项
地址
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