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经营范围
发明名称
COLOR-COATED ROOFING GRANULES
摘要
申请公布号
US3479201(A)
申请公布日期
1969.11.18
申请号
USD3479201
申请日期
1966.01.18
申请人
MINNESOTA MINING & MFG. CO.
发明人
ROBERT J. SLOAN
分类号
C04B41/50;(IPC1-7):B44C1/06;B44D1/46
主分类号
C04B41/50
代理机构
代理人
主权项
地址
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