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general court of massachusetts for a new method of making salt. [ ] [ ] [ ] on april , , president george washington signed the patent act of ( stat. ) into law which proclaimed that patents were to be authorized for "any useful art, manufacture, engine, machine, or device, or any improvement therein not
james j.d. gragg of tulsa, oklahoma who filed a patent on october , and was issued united states patent # on march , . [ ] cmos image sensor early prototype of a cmos image sensor a cmos image sensor ( complementary metal-oxide semiconductor ) is an image sensor consisting of an integrated circuit containing...
https://en.wikipedia.org/wiki/Timeline_of_United_States_inventions_(after_1991)