Device for the operation of dictating machines
United States Patent 3086086
Inventors:
Richard, Ernst
Rudolf, Albrecht
Publication Date:
04/16/1963
Assignee:
Sud, Atlas Werke
Other Classes:
369/53.450, 252/950, 360/61, 369/53.410, 369/2, 360/82
International Classes:
G11B31/00
US Patent References:
| 2784258 | Two station dictating system with a plurality of recorders | | | |