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发明名称
HEATING AND VENTILATING APPARATUS
摘要
申请公布号
CA396475(A)
申请公布日期
1941.05.13
申请号
CAD396475
申请日期
申请人
BURD PISTON RING COMPANY
发明人
ROBERT H. COLVIN
分类号
主分类号
代理机构
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