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经营范围
发明名称
Boiler and heat exchanger
摘要
申请公布号
US2244831(A)
申请公布日期
1941.06.10
申请号
US19380220838
申请日期
1938.07.23
申请人
DRICHTA EDWARD A;DRICHTA ERWIN A
发明人
DRICHTA EDWARD A.;DRICHTA ERWIN A.
分类号
F24H6/00
主分类号
F24H6/00
代理机构
代理人
主权项
地址
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