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Patents
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Pictured: Measurement on a Standard Regulator Screw from 16-Size Illinois Model 4 (5.25mm) The patent application submitted by Arthur Bonnet in March 1910 for his automatic temperature compensating screw indicates.
Pictured: Landis Watch Co. Movement (Grade 174) [Image Courtesy of PWDB User edi113] In 1910, the Lincoln Watch & Jewelry Co. introduced the patented “Landis Automatic Regulator” on its “Landis.
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Pictured: “Temperature Compensating Mechanism” Patent #968235 In 1910, the Lincoln Watch & Jewelry Company secured a patent for an improvement to the regulator used on its watches, designed to provide.
Pictured: Illustration, U.S. Patent #498575. On July 31, 1894, George E. Hunter was granted a patent for his notched dial foot design, created to easily and securely fasten watch dials..
![Abraham Bitner’s Ambitious Plan for a Dial Company img](https://blog.pocketwatchdatabase.com/wp-content/uploads/2021/06/Keystone-Patent-Celluloid-Dial-1024x1024.jpg)
Pictured: Flat Metal Reverse of Celluloid Watch Dial from the Keystone Watch Company One of the primary claims of distinction in Abraham Bitner’s 1881 patent application for his paper dial.
Pictured: Edge of Celluloid Watch Dials from the Keystone Watch Company Showing Paper Substrate Despite the failure of Abraham Bitner’s patented paper dial at the Lancaster Watch Company during the.
![Abraham Bitner’s Patented Paper Watch Dial img](https://blog.pocketwatchdatabase.com/wp-content/uploads/2021/06/Lancaster-Watch-Company-Bitner-Paper-Dial.jpg)