Search Results for: Radiotherapy apparatus
july , u.s. patent improvement in electric telegraph for transmitting musical tones, issued july , u.s. patent automatic circuit-breakers for electro-harmonic telegraphs, filed jan , , issued feb , u.s. patent electro-harmonic telegraph, filed jan , , issued feb , u.s. patent telephonic telegraph apparatus
, filed jan , , issued april , u.s. patent electro-harmonic telegraph, filed jan , , issued jan , u.s. patent art of telegraphy, issued july (writing telegraph or telautograph) u.s. patent telautograph, issued july u.s. patent telautograph, issued october u.s. patent art of and apparatus for telautographic...
https://en.wikipedia.org/wiki/Elisha_Gray
this effect, from sutton, was published in the argus on december . [ ] photography[ edit ] in the s sutton also devised a colour photography process but, although examples of this work exist, he did not commercialize it. [ ] : – television[ edit ] in , sutton designed, but did not construct, an apparatus
"description of vacuum apparatus" (pdf). review dec . archived from the original (pdf) on january . retrieved january . ^ a b "henry sutton" . ieee global history network. may . archived from the original on may . ^ moyal, ann, "invention and innovation in australia: the historian's lens", prometheus...
https://en.wikipedia.org/wiki/Henry_Sutton_(inventor)
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