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发明名称
Water heating system
摘要
申请公布号
US2266255(A)
申请公布日期
1941.12.16
申请号
US19410385974
申请日期
1941.03.31
申请人
MCGRAW ELECTRIC COMPANY
发明人
OSTERHELD CLARK M.
分类号
G05D23/275
主分类号
G05D23/275
代理机构
代理人
主权项
地址
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