Questions:
1) Marlon Brando patented four devices, all with the same name, for a particular musical instrument. Which instrument was it?
2) For what item did Harry Houdini receive a patent in 1921?
3) What countries signed on as members and participants in NAFTA in 1994?
Answers:
1) Brando patented the "drumhead tensioning device and method," designed for the snare drum.
2) A diving suit
3) U.S., Canada and Mexico
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