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发明名称
APPARATUS FOR TESTING COATED POROUS MATERIAL
摘要
申请公布号
CA555703(A)
申请公布日期
1958.04.08
申请号
CAD555703
申请日期
申请人
B. F. PERKINS AND SON
发明人
CHARLES A. SOUTHWICK
分类号
主分类号
代理机构
代理人
主权项
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