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发明名称
Tunnel kiln
摘要
申请公布号
US1885811(A)
申请公布日期
1932.11.01
申请号
US19300420107
申请日期
1930.01.11
申请人
JOHN FETZER
发明人
FETZER JOHN
分类号
F27B9/20;F27B9/26
主分类号
F27B9/20
代理机构
代理人
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