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经营范围
发明名称
Rotary kiln
摘要
申请公布号
US2484911(A)
申请公布日期
1949.10.18
申请号
US19450589633
申请日期
1945.04.21
申请人
FRANCES MERRITT SEIL
发明人
SEIL FRANCES MERRITT
分类号
F27B7/32
主分类号
F27B7/32
代理机构
代理人
主权项
地址
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