Sperrvorrichtung an Feuerschutzkassetten fuer Projektionsapparate,申请号DENDATM107073D-传众专利搜索

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发明名称	Sperrvorrichtung an Feuerschutzkassetten fuer Projektionsapparate
摘要
申请公布号	DE503271(C)	申请公布日期	1930.07.22
申请号	DENDATM107073D	申请日期
申请人	METALLWERK ELEKTRA G.M.B.H.	发明人
分类号	G03B21/18	主分类号	G03B21/18
代理机构		代理人
主权项
地址

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