Dynamic magnetic information storage or retrieval – General recording or reproducing – Recording-or erasing-prevention
Patent
1974-12-02
1977-01-11
Moffitt, James W.
Dynamic magnetic information storage or retrieval
General recording or reproducing
Recording-or erasing-prevention
360 62, 360137, 197 98, 197107, G11B 1504
Patent
active
040030873
ABSTRACT:
A record and a play keys of a magnetic tape recorder/player are depressed in order to set the recorder/player in its recording mode, and they are locked in their depressed positions by means of a first locking plate. In the above, the record key is further locked by means of a second locking plate due to the play key in its depressed position. When a stop key is depressed to stop the recording mode, the record and play keys are unlocked from the first locking plate so that the play key is released from its depressed position, and after the release of the play key, the record key is released from its depressed position.
REFERENCES:
patent: 2973664 (1961-03-01), Williams
patent: 3735054 (1973-05-01), Poshimura
Iwasaki Mitsuaki
Kobayashi Hidehiro
Adams Bruce L.
Burns Robert E.
Lobato Emmanuel J.
Moffitt James W.
Victor Company of Japan , Limited
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