Verfahren und Vorrichtung zur Sichtbarmachung oder photographischen Aufzeichnung von Schallwellen.,申请号ATD120667-传众专利搜索

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发明名称	Verfahren und Vorrichtung zur Sichtbarmachung oder photographischen Aufzeichnung von Schallwellen.
摘要
申请公布号	AT120667(B)	申请公布日期	1931.01.10
申请号	ATD120667	申请日期	1929.01.07
申请人	JULIUS BISTRON	发明人	JULIUS BISTRON
分类号		主分类号
代理机构		代理人
主权项
地址

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