Swedish-American inventor John Ericsson patented the screw propeller design.
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The Soviet Union started mass producing the AK-47 assault rifle.
A patent was granted to Robert Goddard for a liquid-filled rocket.
Johannes Ostermeier patented the flashbulb for cameras.
Benjamin Franklin announced his invention of bifocal eyeglasses.
Inventor Moses F Gale patented the cigar lighter in the US.
