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经营范围
发明名称
Oven ventilator
摘要
申请公布号
US1757987(A)
申请公布日期
1930.05.13
申请号
US19290330219
申请日期
1929.01.04
申请人
WHITTIER ALBERT E
发明人
WHITTIER ALBERT E.
分类号
A21B1/00
主分类号
A21B1/00
代理机构
代理人
主权项
地址
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