Answer: PATENTS

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Inventor's protection we know 2 Answers
Inventor's safeguards we know 1 Answer
Inventor's protections we know 1 Answer
Exclusive rights we know 2 Answers
Edison's collection we know 1 Answer
Trademark relatives we know 1 Answer
Trademark cousins we know 1 Answer
They might be pending we know 1 Answer
Safeguards of a kind we know 1 Answer
Protections for inventors we know 1 Answer
Preventers of many thefts we know 1 Answer
Monopoly-right documents we know 1 Answer
Inventors' rights we know 1 Answer
Inventors' concerns we know 1 Answer
Inventors' assets we know 1 Answer
Invention papers we know 1 Answer
Inventing safeguards we know 1 Answer
Edison's 1,000+ we know 1 Answer
Edison held hundreds of them we know 1 Answer

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