United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 855
T- 35ramidal shape with concave sides. 3. A needle or stylus for graphophones andthe like having apjTamidal-shaped point withconcave faces. In testimony whereof I have signed my 40name to this specification in the presence oftwo subscribing witnesses. FRED PETAIECKY.Witnesses: J. W. Chenneville,A.… … Fig. 4, f.7 *rZ/£
Phonograph · Patents
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