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经营范围
发明名称
Water heater
摘要
申请公布号
US1965208(A)
申请公布日期
1934.07.03
申请号
US19310559663
申请日期
1931.08.27
申请人
J. R. ACKERMAN CORPORATION
发明人
ACKERMAN JOHN R.
分类号
F24H1/10
主分类号
F24H1/10
代理机构
代理人
主权项
地址
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