Intellectual property protection ... or what the starts of 17-, 21-, 39- and 57-Across once were, 10 letters - Crossword clues, answers, solver

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Answer for the clue "Intellectual property protection ... or what the starts of 17-, 21-, 39- and 57-Across once were ", 10 letters:
trademarks

Alternative clues for the word trademarks

Many commercial slogans
Play-Doh and Silly Putty, e.g
Deal with old currency symbols that are put across here
Do business like an old German banker?
What the puzzle's long answers all were
Corporate logos, e.g
Symbols of merchandise

Word definitions for trademarks in dictionaries

Wiktionary Word definitions in Wiktionary
n. (plural of trademark English) vb. (en-third-person singular of: trademark )

Usage examples of trademarks.

MIRA and the Star Colophon are trademarks used under license and registered in Australia, New Zealand, Philippines, United States Patent and Trademark Office and in other countries.

BERKLEY PRIME CRIME and the BERKLEY PRIME CRIME design are trademarks belonging to Penguin Putnam Inc.