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发明名称
Indicating cutout
摘要
申请公布号
US2283031(A)
申请公布日期
1942.05.12
申请号
US19410379507
申请日期
1941.02.18
申请人
PORCELAIN PRODUCTS, INC.
发明人
BARNITZ RICHARD W.
分类号
H01H31/12
主分类号
H01H31/12
代理机构
代理人
主权项
地址
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