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https://www.demarctreasures.com/jewelry-utility-patents.html
This utility patent that was designed by Royal Marcher for Coro actually opens to a compartment under the stone so that the wearer can place a perfume absorption material! Vendome actually claims this patent for their rings. It also talks about them in it's 1969 ad "Every fabulous Vendome ring …
https://www.trufauxjewels.com/utility-patents/
A utility patent is protection granted by a government to an inventor for the way an article is used and the way it works. In jewelry, utility patents pertain to devices (also called findings), such as earring clips or brooch fasteners. All utility patents …Estimated Reading Time: 7 mins
https://www.costumejewelrycollectors.com/vintage-costume-jewelry-research/research-resources/mechanical-and-utility-jewelry-patents/vintage-jewelry-patents-2/
Aug 24, 2019 · Visit the US Patent Website! Also, visit Jewelry Patents, a large patent resource Jewelry Patents. A Design Patent only protects the appearance of an article, not it’s structural or functional features, and is usually used for decorative items. A Utility Patent …Estimated Reading Time: 30 secs
https://www.costumejewelrycollectors.com/vintage-costume-jewelry-research/research-resources/mechanical-and-utility-jewelry-patents/trifari-jewelry-patents-4/
Aug 24, 2019 · Trifari Jewelry Patents: 1940. Posted by Mark Lewis On 24 August,2019 In Mechanical and Utility Jewelry Patents. Costume Jewelry Collectors. Presents. an original publication by RCJ and Dorothea Stringfield. Thanks to Mary Walden-Till for providing many of these patent images. Any unattributed images are from Mary or RCJ.Estimated Reading Time: 30 secs
https://www.starcojewellers.com.au/u-jewelry/utility-patent-jewelry.html
Utility Patents TruFaux Jewels - Vintage Jewelry. https://www.trufauxjewels.com/utility-patents/ A utility patent is protection granted by a government to an inventor for the way an article is used and the way it works. In jewelry, utility patents pertain to devices (also called …
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