Invention (441 pages)
Invention Patentability Analysis (345 pages)
Invention disclosure (377 pages)
Invention patentability (312 pages)
Invention protection (365 pages)
Subject: Gramophone and invention
17 general knowledge quiz questions. It should take around 4 minutes to complete all the questions.
Alexander • Allowed • America • Bell • Between • Classical • Concept • Credited • Describe • Device • Did • Edison • Etching • Expensive • Federation • First • Groove • Grooves • His • How • Instead • Invented • Knob • Led • Live • Marconi • Multiple • Organization • Original • Performances • Person • Plastic • Player • Primary • Production • Recorded • Responsible • Size • Sound • Standardizing • Stylus • Use • Used • Voice • Was • Waves • When • Which • Who • Years