United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 188
40layer being of such thickness that a recordimpressed on one laj^er will not be transmit-ted to a succeeding layer substantially as setforth. 4. A phonogram blank having in combina- 45tion super-imposed separable laj^ers of flexi-ble wax or wax like material, substantially asset forth. This… … *^W-vl>vvccK>e.> GUt(yt/\V0ti : NORHja HETERS CO , PHOTO-LITHO,. United States Patent Office, HENRY HOESCHEN, OF OMAHA, NEBRASKA, ASSIGNOR TO ERASTUS A. BENSON, OF SAME PLACE. COIN-CONTROLLED PHONOGRAPH. SPECIFICATION forming part of Letters Patent No. 488,278, dated December 20,1892.…
Phonograph · Patents
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