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发明名称
Valve for two-line steam heating systems
摘要
申请公布号
US1936125(A)
申请公布日期
1933.11.21
申请号
US19310549233
申请日期
1931.07.07
申请人
BOLDT EDWARD C
发明人
BOLDT EDWARD C.
分类号
F16K15/04
主分类号
F16K15/04
代理机构
代理人
主权项
地址
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