United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 909
same in vibration essentially molecular incharacter, and a submerged receiver sensi-tive to molecular vibrations, as set forth. 4. A transmitter for submarine signalingsystems consisting of a metallic body in com-bination with means for setting the same in vibration essentially molecular in… … F/g.Z
Phonograph · Patents
Internet Archive · Smithsonian Libraries · Public Domain Mark 1.0. Free to use for anything.
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