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发明名称
Feststehende Schalttaste,bestehend aus piezo-elektrischem oder Halbleiter-Material zur Eingabe von Ziffern und Schriftzeichen
摘要
申请公布号
DE2019740(A1)
申请公布日期
1971.11.11
申请号
DE19702019740
申请日期
1970.04.23
申请人
BERLING,ECKART,DIPL.-ING.
发明人
DEPPING,FRIEDHELM,DR.-ING.;BERLING,ECKART,DIPL.-ING.
分类号
H03K17/967
主分类号
H03K17/967
代理机构
代理人
主权项
地址
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