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发明名称
Articulated support beam
摘要
申请公布号
US3073559(A)
申请公布日期
1963.01.15
申请号
US19600035604
申请日期
1960.06.13
申请人
REED JOHN C
发明人
REED JOHN C.
分类号
E04C3/00
主分类号
E04C3/00
代理机构
代理人
主权项
地址
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