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经营范围
发明名称
Water heater
摘要
申请公布号
US1957615(A)
申请公布日期
1934.05.08
申请号
US19330657869
申请日期
1933.02.21
申请人
RUSSELL JAMES E
发明人
RUSSELL JAMES E.
分类号
F28C3/06
主分类号
F28C3/06
代理机构
代理人
主权项
地址
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