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经营范围
发明名称
Combined fireplace throat and damper
摘要
申请公布号
US1928165(A)
申请公布日期
1933.09.26
申请号
US19310562985
申请日期
1931.09.15
申请人
BOLDT PAUL E
发明人
BOLDT PAUL E.
分类号
F24B1/189
主分类号
F24B1/189
代理机构
代理人
主权项
地址
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