How many times can you subtr...
[2344] How many times can you subtr... - How many times can you subtract the number 5 from 25? - #brainteasers #math #riddles - Correct Answers: 128 - The first user who solved this task is Djordje Timotijevic
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How many times can you subtr...

How many times can you subtract the number 5 from 25?
Correct answers: 128
The first user who solved this task is Djordje Timotijevic.
#brainteasers #math #riddles
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U.S. Patent No. 1

In 1836, John Ruggles of Thomaston, Maine received patent Number 1 from the U.S. Patent Office, under a new system for numbering patents. Before Ruggles, there had been 9,957 non-numbered patents issued. Ruggles received his patent for a traction wheel used in locomotive steam engines. He was Chairman of the Committee on Patents of the U.S. Senate, and was instrumental in patent law reform. However, in 1838, a Senate select committee investigated corruption charges against Senator Ruggles relating to a patent application.
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