United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 637
thin the coated tube, sub-stantially as described. This specification signed and witnessedthis 26th day of August, 1914. THOS. A. EDISON.Witnesses: Frederick Bachmann,Mary J. Laidlaw. Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington,… … eJ+vue/M/toz. ^Wi-tn-eooed J7ZL fit/far. 3Si^
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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