Leonard Storch and Patent Free People Check 

( I'm Leonard Storch)
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Have you heard of the exclamation comma? The story of punctuation's...

www.dailymail.co.uk
The combination of an exclamation point and a comma was created in 1992, but never caught on and its American inventors let its patent lapse three years later.

Culture - Punctuation that failed to make its mark - BBCwww.bbc.com/culture/story punctuation-that-failed-to-make-its-mark

www.bbc.com
Their patent was short and to the point: Leonard Storch and his co-inventors explained that they had replaced the dots at the bottom of the ...
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