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发明名称
Escalator cover
摘要
申请公布号
US2188509(A)
申请公布日期
1940.01.30
申请号
US19380207992
申请日期
1938.05.14
申请人
CORNELL IRON WORKS, INC.
发明人
KAVANAGH WILLIAM L.;CORNELL MILTON L.
分类号
B66B31/00
主分类号
B66B31/00
代理机构
代理人
主权项
地址
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