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发明名称
Apparatus for making variegated hard surface covering
摘要
申请公布号
US2434292(A)
申请公布日期
1948.01.13
申请号
US19440541188
申请日期
1944.06.20
申请人
ARMSTRONG CORK COMPANY
发明人
SPENCER VIRGIL
分类号
D06N7/00
主分类号
D06N7/00
代理机构
代理人
主权项
地址
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