United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 54
ntially as set forth. 4. Thecombination, with a phonograph dia-phragm and needle, of a traveling recording 75medium capable of being made plastic by heat, a motor for moving such medium, and meansfor heating and cooling such medium, sub-stantially as set forth. This specification signed and…
Phonograph · Patents
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