Dynamic magnetic information storage or retrieval – Miscellaneous
Patent
1981-05-08
1983-10-11
Wolff, John H.
Dynamic magnetic information storage or retrieval
Miscellaneous
200DIG34, G11B 1504
Patent
active
044096348
ABSTRACT:
A tape recorder capable of detecting and discriminating the position of an operating button by the touch of a finger tip comprises a projected wall having a predetermined configuration positioned along each of the operating buttons provided in the tape recorder casing.
REFERENCES:
patent: 1377070 (1921-05-01), Helguera
patent: 2522423 (1950-09-01), Youhouse
Kadota Toshihiko
Sawaki Ryoichi
Olympus Optical Company Limited
Wolff John H.
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