Pictured: “Watch Bridge” U.S. Patent #D18722 In a move that was rather uncommon for watch manufacturers at the time, the Non-Magnetic Watch Company of America applied for a design patent.
Pictured: Ajax Insulator with Original Box [Images Courtesy of eBay Seller baubles-and-buttons] The anti-magnetic Ajax Insulators sold by the Newark Watch Case Company typically featured a glossy black exterior and.
Pictured: “The Giles Patent Anti-Magnetic Shield” Advertisement, The Jewelers’ Circular and Horological Review, 1884 (Unknown Issue) As electricity was being adopted across the globe in the 1880s, the watch industry.
Pictured: U.S. Patent #384,731 Charles-Auguste Paillard received six patents in the United States for his innovative palladium alloys used in watchmaking. Paillard’s alloys were immune to corrosion, did not dilate.
Pictured: C.A. Paillard’s Palladium Compensation Balance U.S. Patent #359093. In addition to seeking patents in Europe, Charles-Auguste Paillard submitted patent applications in the United States to protect the use of.
Pictured: C.A. Paillard’s Palladium Balance Abstract of English Patent #8730. While the most delicate part of a watch to be significantly affected by magnetism and corrosion is the hairspring, the.