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发明名称
Electric guard gate for stock
摘要
申请公布号
US2476233(A)
申请公布日期
1949.07.12
申请号
US19460703665
申请日期
1946.10.16
申请人
发明人
WOOD JOSEPH H.
分类号
H01B17/14
主分类号
H01B17/14
代理机构
代理人
主权项
地址
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