United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 275
ffta my signature. ,1 \MES C. DRAKE. Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. CTH( [ AND APPARATUS FCR SYNCHRONOUSLY PRODUCINGSOUNDS TO ACCOMPANY MOTION PICTURES. 1,854,684 ——. __. E> L> Greenefelder. ■■.■■… … jFm/.£.
Phonograph · Patents
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