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发明名称
Apparatus having a controllable vent
摘要
申请公布号
US3104965(A)
申请公布日期
1963.09.24
申请号
US19590829332
申请日期
1959.07.24
申请人
DAFFIN CORPORATION
发明人
MAST AQUILA D.
分类号
B04C11/00
主分类号
B04C11/00
代理机构
代理人
主权项
地址
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