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发明名称
Apparatus for maintaining a predetermined water level in steam boilers
摘要
申请公布号
US1781749(A)
申请公布日期
1930.11.18
申请号
US19280278834
申请日期
1928.05.18
申请人
SCHMIDT'SCHE HEISSDAMPF G.M.B.H.
发明人
DAVIN GEORGE HEINRICH
分类号
F22D5/16
主分类号
F22D5/16
代理机构
代理人
主权项
地址
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