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Rarewares, Antiques and Collectibles Researcher
Category: Antiques
Satisfied Customers: 12997
Experience:  Antiques dealer for over 10 years specializing in porcelain, glass, art, furniture, coins, watches, sterling silver, pocket watches, and jewelry.
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I have a 9ct brooch marked pat 177368. What does pat 177368

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I have a 9ct brooch marked pat 177368. What does pat 177368 mean.
The patent number on a brooch would refer to the patent for the pin mechanism that opens and closes the brooch and has nothing to do with the maker since jewelers generally bought the backs from the inventor to add to their pieces.
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