Elément pour la construction de canaux de ventilation dans le bâtiment.,申请号CHD285699-传众专利搜索

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发明名称	Elément pour la construction de canaux de ventilation dans le bâtiment.
摘要
申请公布号	CH285699(A)	申请公布日期	1952.09.30
申请号	CHD285699	申请日期	1950.01.23
申请人	CHARLES ZANELLO S.A.	发明人	S.A. CHARLES ZANELLO
分类号	E04F17/04	主分类号	E04F17/04
代理机构		代理人
主权项
地址

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