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经营范围
发明名称
Grate and grate bar
摘要
申请公布号
US2033576(A)
申请公布日期
1936.03.10
申请号
US19340758742
申请日期
1934.12.22
申请人
HOFFT MAURICE A
发明人
HOFFT MAURICE A.
分类号
F23H9/08
主分类号
F23H9/08
代理机构
代理人
主权项
地址
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