United States. Patent Office · Washington, D.C., Govt. Print. Off. · leaf 373
The combination of a resonator of amaterial penetrable by the light, a combinedsound and light reflector supported within lOOthe resonator, and a light supported adja-cent to the reflector. In testimony whereof I have signed myname to this specification in the presence oftAvo subscribing witnesses.…
Phonograph · Patents
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![An illustration from [Graphophone patents], 1878, leaf 373](https://img.insideoutlibrary.com/img/1024/ia-graphophonepaten10unit-373-254.webp)
