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Uploader determined values for 2021 and 2022 by obtaining Google Patent listings of patents issued on the first Tuesday of 2021, 2022, and 2023, and performing simple subtraction of lowest-value patent numbers. (All U.S. patents have issue dates on Tuesdays.)
A portion of the disclosure of this patent document contains material which is subject to (copyright or mask work) protection. The (copyright or mask work) owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure, as it appears in the Patent and Trademark Office patent file or records, but ...
Wikipedia entry for Google Patents.Google Patents is a search engine from Google that indexes patents and patent applications from the United States Patent and Trademark Office.
A comparatively small number of models (4,000) were the property of the Rothschild Patent Museum until 2015, when they were transferred to Hagley Museum and Library, forming a part of the museum's collection of patent models. With over 5,000 models, the Hagley's is the largest private collection, and second in size only to the Smithsonian's.
From "Template:Cite patent/doc": "Simple patent template for citing patents or patent applications from any country in the esp@cenet database. This database is more useful than the USPTO database since it highlights related patents/applications in other countries, provides current status information, and is available in three languages.
Simon Willard (April 3, 1753 – August 30, 1848) was a celebrated American clockmaker.Simon Willard clocks were produced in Massachusetts in the towns of Grafton and Roxbury, near Boston.
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Otis King's patent calculator, model K; Photo by Richard Lyon. Otis Carter Formby King (1876–1944) was an electrical engineer [1] in London who invented and produced a cylindrical slide rule with helical scales, primarily for business uses initially. The product was named Otis King's Patent Calculator, and was manufactured and sold by Carbic ...