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发明名称
Portable support
摘要
申请公布号
US2247024(A)
申请公布日期
1941.06.24
申请号
US19400332584
申请日期
1940.04.30
申请人
HURLEY EARL H
发明人
HURLEY EARL H.
分类号
F16L3/00
主分类号
F16L3/00
代理机构
代理人
主权项
地址
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