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发明名称
METHOD & APPARATUS FOR ONE-PIECE ROOF VENT
摘要
申请公布号
AU4902079(A)
申请公布日期
1980.06.19
申请号
AU19790049020
申请日期
1979.07.18
申请人
BALLARD, J.W. AND BALLARD, L.R.
发明人
JAMES W. BALLARD;LARRY R. BALLARD
分类号
B21D53/00;E04D13/16;F16K15/14;F24F7/02
主分类号
B21D53/00
代理机构
代理人
主权项
地址
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