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摘要
申请公布号
US1900687(A)
申请公布日期
1933.03.07
申请号
US19250015788
申请日期
1925.03.16
申请人
BASH THOMAS B
发明人
BASH THOMAS B.
分类号
H01H9/10
主分类号
H01H9/10
代理机构
代理人
主权项
地址
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