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发明名称
Knockdown adjustable railing
摘要
申请公布号
US2870996(A)
申请公布日期
1959.01.27
申请号
US19570664090
申请日期
1957.06.06
申请人
NATIONAL ALUMINUM PRODUCTS COMPANY
发明人
HELT HERBERT M.
分类号
E04F11/18
主分类号
E04F11/18
代理机构
代理人
主权项
地址
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