United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 469
rd cylinder, .sealing members removablyembedded in said block and ])late, and meansfor exerting pressure directly on and be-yond the head plate to cau.se sealing co-operation between said members and theextreme ends of the cylinder. In testimony whereof, I affix my signaturein presence of two… … Inventor o. AtioTtiey ANDREW a GRAHAM CO, PHOTO.IJTMOQRAPUER& W4S«lMQT0N. 6. C. I ID T. A. EDISON. APPABATDS FOR RECORDING SOUNDS. APPLICATION FILED NOV. 13, 1903. 962,081. Patented June 21,1910. 2 SHEETS-SHEET 2.
Phonograph · Patents
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