United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 594
e, the combination of a disk serving as atablet or tablet holder with a carriage tocarry the operating parts, a friction wheel todrive the disk, a shaft on which such frictionwheel is supported, and a bearing on the car- 45riage for such shaft so constructed as to pre-vent a longitudinal movement… … Vyzta^eSses;
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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