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发明名称
Portable take-down structure
摘要
申请公布号
US2149165(A)
申请公布日期
1939.02.28
申请号
US19350030253
申请日期
1935.07.08
申请人
ALFRED DOWD LEWIS
发明人
DOWD LEWIS ALFRED
分类号
E04B1/343
主分类号
E04B1/343
代理机构
代理人
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地址
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