United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 823
s for securing thesame in any one of a plurality of positions onthe top of said projection, and a secondpressing member for pressing the composi-tion against said matrix and the top of said 45projection, substantially as set forth. This specification signed and witnessedthis 10th day of January,… … sssyssss^ssssssssygg
Phonograph · Patents
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