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发明名称
Boiler return and vacuum trap
摘要
申请公布号
US1920510(A)
申请公布日期
1933.08.01
申请号
US19320636998
申请日期
1932.10.10
申请人
KNEFEL STANLEY F;RAYMOND KNEFEL;CLEMENT KNEFEL;EMMANUEL KNEFEL
发明人
KNEFEL STANLEY F.;KNEFEL RAYMOND;KNEFEL CLEMENT;KNEFEL EMMANUEL
分类号
F22D11/06
主分类号
F22D11/06
代理机构
代理人
主权项
地址
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