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发明名称
Vent construction
摘要
申请公布号
US3192849(A)
申请公布日期
1965.07.06
申请号
US19630274447
申请日期
1963.04.22
申请人
MASSENGALE RICHARD D
发明人
MASSENGALE RICHARD D.
分类号
E06B7/08
主分类号
E06B7/08
代理机构
代理人
主权项
地址
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