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发明名称
TUBE HEATER
摘要
申请公布号
US3492973(A)
申请公布日期
1970.02.03
申请号
USD3492973
申请日期
1969.04.11
申请人
SELAS CORP.
发明人
IRWIN G. BENKERT;MAURICE R. KITZEN
分类号
C10G9/20;F17C9/02;(IPC1-7):F22B37/20;F22B37/64
主分类号
C10G9/20
代理机构
代理人
主权项
地址
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