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经营范围
发明名称
Automatic gate
摘要
申请公布号
US2513887(A)
申请公布日期
1950.07.04
申请号
US19450637531
申请日期
1945.12.28
申请人
MARK RALPH JACKSON, SR.
发明人
NEAL JULIAN E.
分类号
E05F13/04
主分类号
E05F13/04
代理机构
代理人
主权项
地址
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