发明名称 Model house calendar kit - has cassette recorder linked to door or window switches to produce tune when opened
摘要 <p>The advent calender is in the form of a house kit which can be suspended. The house has a hollow space inside with doors and windows which can be opened. Each window or door triggers a particularl tune when ooened. The housing (1) contains an electronic control unit (3) linked to a cassette recorder (6) on the outside via a cable. The control unit is also linked to the individual windows and doors. A pulse is transmitted to the cassette recorder via a contact linked to each door or window to trigger the tune.</p>
申请公布号 DE2934308(A1) 申请公布日期 1981.03.26
申请号 DE19792934308 申请日期 1979.08.24
申请人 OBERSCHLEP,FRITZ-JUERGEN,DR. 发明人 OBERSCHLEP,FRITZ-JUERGEN,DR.
分类号 G09B5/06;G09D3/00;(IPC1-7):42D5/04 主分类号 G09B5/06
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