do now

patent: the government also encourages new ways of doing things by granting.
a tooth brush.
H. N. Wadsworth and many American Companies began to mass-produce toothbrushes after 1885.by William Addis.
I am surprised because I thought tooth brush were made like in 1500 but it was actually made a little after 1885. and I use a tooth brush every day and I would never skip a day.

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