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经营范围
发明名称
Grain door
摘要
申请公布号
US1945974(A)
申请公布日期
1934.02.06
申请号
US19320645279
申请日期
1932.12.01
申请人
WESLEY HILTZ JOHN
发明人
HILTZ JOHN WESLEY
分类号
B61D19/00
主分类号
B61D19/00
代理机构
代理人
主权项
地址
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