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经营范围
发明名称
Gas mixing apparatus
摘要
申请公布号
US2023809(A)
申请公布日期
1935.12.10
申请号
US19330655237
申请日期
1933.02.04
申请人
UTILITY DEVELOPMENT COMPANY
发明人
HELLER JOHN K.
分类号
C10J1/14
主分类号
C10J1/14
代理机构
代理人
主权项
地址
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