/LAW/INVENTION

I have apparently written about the following inventions:
 
/LAW/INVENTION
Analog computer
Spark plug
Boson
Pocket watch
Rubik’s Cube
World Wide Web
Analog-to-digital converter
Clinical trial
Magnifying glass
Circle graph
Photocopier
Integrated circuit
Calculator
Dynamic random-access memory
Hard disk drive
Matryoshka doll
Laser printing
Dewey Decimal Classification
Mobile phone
Cochlear implant
Fax
Peanut butter
Flip-flop (electronics)

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