February 15, 1913
Illustration by Carl Erickson
Official Gazette of the United States Patent Office
February 5, 1946
Official Gazette of the United States Patent Office
December 6, 1949
ex'cla-ma'tion by Coty, 1988
new ex'cla-ma'tion logo
Oatly!
Briefest Correspondence: Question Mark? Exclamation Mark!
Explained: Exclamation Point
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(Updated December 10, 2022; next post on Monday: Comic Book Trademarks, Part 9)
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