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- device invented jointly by Alexander Graham Bell and his assistant Charles Sumner Tainter in 1880 (en)
- dispositivo di comunicazione che utilizza la luce (it)
- устройство для передачи звуковых сигналов (ru)
- המצאה של אלכסנדר בל (iw)
- جهاز إتصال (ar)
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- https://www.histv.net/graham-bell-contribution-indirecte
- https://www.histv.net/bell-production-of-sound-by-light
- https://archive.org/details/alexandergrahamb0000cars/page/76
- https://books.google.com/books%3Fid=zoaSp1BJu50C&pg=PA1%23v=onepage&q&f=false
- http://www.bluehaze.com.au/modlight/ModLightBiblio.htm
- http://www.modulatedlight.org/Modulated_Light_DX/ModLightBiblio.html
- http://memory.loc.gov/cgi-bin/query/P%3Fmagbell:1:./temp/~ammem_3ShO::@@@mdb=mcc,gottscho,detr,nfor,wpa,aap,cwar,bbpix,cowellbib,calbkbib,consrvbib,bdsbib,dag,fsaall,gmd,pan,vv,presp,varstg,suffrg,nawbib,horyd,wtc,toddbib,mgw,ncr,ngp,musdibib,hlaw,papr,lhbumbib,rbpebib,lbcoll,alad,hh,aaodyssey,magbell,bbc,dcm,raelbib,runyon,dukesm,lomaxbib,mtj,gottlieb,aep,qlt,coolbib,fpnas,aasm,denn,relpet,amss,aaeo,mff,afc911bib,mjm,mnwp,rbcmillerbib,molden,ww2map,mfdipbib,afcnyebib,klpmap,hawp,omhbib,rbaapcbib,mal,ncpsbib,ncpm,lhbprbib,ftvbib,afcreed,aipn,cwband,flwpabib,wpapos,cmns,psbib,pin,coplandbib,cola,tccc,curt,mharendt,lhbcbbib,eaa,haybib,mesnbib,fine,cwnyhs,svybib,mmorse,afcwwgbib,mymhiwebib,uncall,afcwip,mtaft,manz,llstbib,fawbib,berl,fmuever,cdn,upboverbib,mussm,cic,afcpearl,awh,awhbib,sgp,wright,lhbtnbib,afcesnbib,hurstonbib,mreynoldsbib,spaldingbib,sgproto,scsmbib,afccalbib,mamcol
- http://oac.cdlib.org/findaid/ark:/13030/kt8c6008r5
- https://books.google.com/books%3Fid=a46ivzJ1yboC
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- 0001-06-03 (xsd:gMonthDay)
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- Marker on the Franklin School commemorating the first formal trial (en)
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- Photophone (en)
- Fotòfon (ca)
- Fotofon (cs)
- هاتف ضوئي (ar)
- Fotófono (es)
- Photophon (de)
- Fotofono (it)
- Photophone (téléphonie optique) (fr)
- フォトフォン (ja)
- 광선전화 (ko)
- Fotofoon (nl)
- Photophone (pt)
- Фотофон (ru)
- Фотофон (uk)
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