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经营范围
发明名称
Steam generator
摘要
申请公布号
US1997934(A)
申请公布日期
1935.04.16
申请号
US19330679787
申请日期
1933.07.10
申请人
JOHN JOHNSON
发明人
JOHNSON JOHN
分类号
F22B11/00
主分类号
F22B11/00
代理机构
代理人
主权项
地址
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