United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 527
ng disk record having a main bodyportion, a transparent portion apertured forengagement with a centering device, and aspider intermediate of and engaging saidmain body portion and the transparent por-tion to hold them in operative relation. In testimony whereof I affix my signaturein presence of… … -S^s Hiy. 2. 6
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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