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发明名称
ELECTRIC FURNACE ROOF
摘要
申请公布号
CA839873(A)
申请公布日期
1970.04.21
申请号
CAD839873
申请日期
申请人
GEO. P. REINTJES CO.
发明人
ROBERT L. ALVIS;ROBERT P. COPELAND;JOHN F. WOOLER
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