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发明名称
VENTILATION SHAFT OF A BUILDING, ESPECIALLY OF A MULTI-STOREY BUILDING
摘要
申请公布号
PL272481(A1)
申请公布日期
1989.11.27
申请号
PL19880272481
申请日期
1988.05.12
申请人
WROCLAWSKIE PRZED BUDOWLANE
发明人
GIELZAK MARIUSZ;DABROWSKI JANUSZ;MAZUREK LEONARD;WOSIEK BRONISLAW;OLCZAK ELZBIETA
分类号
E04F;(IPC1-7):E04F/
主分类号
E04F
代理机构
代理人
主权项
地址
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