United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 1037
em-bers adapted to fit upon the necks of a re-corder and reproducer, a tube connectingsaid members and a valve in said tube, one of 110said members being provided with an openended extension of slightly reduced diam-eter, substantially as set forth. This specification signed and witnessedthis 24th… … WITNESSES: INVENTOR -y&rrtztxy £%&£ _^ BY
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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