Sandpaper Was Patented by Isaac Fischer in 1834

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Jun 142024
 

Sandpaper was patented by Isaac Fischer of Springfield, Vermont, in 1834. Today sandpaper is not made of either sand or paper. Sandpaper is graded by grit size. Course sandpaper has a low number. For example, extra course sandpaper has a number of P12. Ultrafine sandpaper has a number of P6000.

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