It was sophisticated
to call a typewriter that,
after the Greek typtein to strike,
and not to call it a tap-tap-tapper,
...
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So as I read this I visualized a 1920's flapper as she tapped out a sentence or two dressed in a boa and high heeled shoes, perhaps not French or Greek but well keyed and marvelously developed.
By the way your details with words and inventions are quite marvelous too.