United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 549
tation. In testimoiry whereof, I have hereunto setmy hand at Chicago, Illinois, this 20th day 30of April, 1917. LESLIE McAETHUE. Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. . PHONOGRAPHS. 1,359,681 ~-^n r, Thomas, Filed… … R. THOMAS. PHONOGRAPH. APPLICATION FILED MAR. 15, !9I7. 1,259,68: Patented Mar. 19,1918. 2 SHEETS-SHEET 2.
Phonograph · Patents
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