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[Graphophone patents] (1878)
United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 1043
1<Z&.4. mmvwmmvm^vvm^ ; 5 v j ,:-.v,v-mmTOM … Jlik3f.&. /o CZ^ S3Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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