United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 1101
position controlled thereby,and a lock governing the adjustable control-ling arm and acting to hold it in adjustedposition. JOSEPH F. HITCHCOCK. Copies of this patent may be obtained for five cents each, by addressing the Washington, D. C. Commissioner of Patents, STOPPING ATTACHMENT FOR TALKING…
Phonograph · Patents
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