Innovations and Inventions

What was the effect of inventions in 1920s America?

At the end of the war various products and methods of production were developed.

Which inventions improved communications in 1920s America?

Dial phones, coin phones, teletype machines and the automatic switchboard all improved communications.

What new materials were invented in 1920s America?

New synthetic materials were developed by the chemical industry, such as cellophane, rayon, nylon and bakelite.

Which inventions improved the building industry in 1920s America?

Pneumatic drills and concrete mixers sped up the building industry and made it more efficient.