How many telephones were installed in the 1920s?

Answer 1

NO! Cell phones came about in the 80's in the 1880s, Scientific American had already carried articles describing attempts at wireless telephony and telegraphy experiments by induction systems of Trowbridge, Preece, Phelps, and Edison, not using high frequency radio waves, so Stubblefield was likely familiar with all the principles needed to operate wireless telephony by induction in the 1880s. He made private demonstrations of wireless telephony in 1892. Rainey T. Wells was one of the first persons to hear Stubblefield's wireless voice transmissions, in that year. Wireless telegraphy using damped high frequency radio waves was demonstrated in 1894 by Sir Oliver Lodge, but that system could not carry voice messages or music. In 1898, Stubblefield was issued U.S. Patent 600457 for an "Electric battery," which was an electrolytic coil of iron and insulated copper wire to be immersed in liquid or buried in the ground, where it could also serve as a ground terminal for wireless telephony.

Answer 2

Yes they had telephones in the 1920's. The telephone was invented i n 1876. 1920 is after 1876.

Answer 3

The telephone was invented in 1876, so they did have them in 1938. Color telephones were first offered in the 1930s.

Answer 4

Yes 1940 telephones worled with bus bar technology

Answer 5

Yes, but not cell phones.

Answer 6

Yes. There were telephones in 1960.

Answer 7

yes there was