(RoI=Academic jargon for "Report of Invention")
What patents do the following people hold?
Abraham Lincoln
Heddy Lamar
Zeppo Marx
OK, I should make you go look it up yourselves, but the answers are: 1) A device for extricating paddlewheel boats from sandbars, 2) the frequency key shifting technology now used in cell phones, and 3) the Marman clamp.
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