发明名称 CHANNEL SELECTION APPARATUS FOR HIGH FREQUENCY RECEIVERS WITH VARIABLE CAPACITANCE DIODE TUNING
摘要 A channel selection apparatus in the general form of a box having a swingable access door. The door is biased to remain open when opened and to remain closed when closed. The access door carries a plurality of manually depressible keys in the form of levers. Upon depression each lever engages and activates an electrical switch carried within the box.
申请公布号 US3689724(A) 申请公布日期 1972.09.05
申请号 USD3689724 申请日期 1970.01.27
申请人 WOLFGANG LABUDE;KARL-HEINZ BAUER 发明人 WOLFGANG LABUDE;KARL-HEINZ BAUER
分类号 H04B1/06;H01H21/02;H01H21/22;H03J1/06;H03J5/12;(IPC1-7):H01H3/04 主分类号 H04B1/06
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