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发明名称
COWL FOR SMOKE-STACK
摘要
申请公布号
CA717297(A)
申请公布日期
1965.09.07
申请号
CAD717297
申请日期
申请人
NATIONAL RESEARCH COUNCIL OF CANADA
发明人
CHARLES P. THORNTON
分类号
主分类号
代理机构
代理人
主权项
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