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经营范围
发明名称
Low temperature carbonization oven
摘要
申请公布号
US1928537(A)
申请公布日期
1933.09.26
申请号
US19310536288
申请日期
1931.05.09
申请人
CHARLES HENNAY
发明人
HENNAY CHARLES
分类号
C10B7/02
主分类号
C10B7/02
代理机构
代理人
主权项
地址
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