Related terms:
reis
meucci
caveat
bell
elisha gray
telegraphy
telephony
diaphragm
patent caveat
sound waves
antonio meucci
transmitting
patent office
telephone
transmitter
water transmitter
liquid transmitter
innocenzo manzetti
public demonstrations
telephone exchange
alexander graham bell
Wikipedia sources:
Telephone
Alexander Graham Bell
Invention of the telephone
Context for words:
alexander
bell
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