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经营范围
发明名称
FELT
摘要
申请公布号
CA784402(A)
申请公布日期
1968.05.07
申请号
CAD784402
申请日期
申请人
AMERICAN FELT COMPANY
发明人
WILLIAM F. ARMSTRONG
分类号
主分类号
代理机构
代理人
主权项
地址
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