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The Walther Model 9 was a semi-automatic pistol produced by Carl Walther GmbH and chambered in .25 ACP. History
The first design was a 6.35mm blow-back design based on the Browning 1906. [1] This was the Brevetto 5 (Italian for "Model" or "Patent" number 5). Galesi Arms would continue to do more designs including the Brevetto 9 (a longer version of the Brevetto 5) and the 500 series, which included 14 designs ranging from Brevetto 503 to Brevetto 517.
Patent model of Eli Whitney’s cotton gin. A patent model was a handmade miniature model no larger than 12" by 12" by 12" (approximately 30 cm by 30 cm by 30 cm) that showed how an invention works. It was one of the most interesting early features of the United States patent system. [1]
The high number of patent families for Spain in the 1800s is related to the superior preservation and cataloguing of the data by Spanish Patent and Trademark Office compared to other countries (see 1836 U.S. Patent Office fire). The US was the World's leader in terms of patent families filed between 1900 and 1966, when Japan took over.
Caveats were instituted by the U.S. Patent Act of 1836, but were discontinued in 1909, with the U.S. Congress abolishing the system formally in 1910. Patent model – was a scratch-built miniature model no larger than 12" by 12" by 12" (approximately 30 cm by 30 cm by 30 cm) that showed how an invention works. It was one of the most interesting ...
The Moore Caliber .32 Teat-fire, which used a unique cartridge to get around the Rollin White patent owned by Horace Smith and Daniel Wesson, proved very popular during the Civil War, with both soldiers and civilians. The "Teat-fire" cartridges did not have a rim at the back like conventional cartridges, but were rounded at the rear, with a ...
The Walther Model 8 was a 6.35mm single-action pocket pistol manufactured by Carl Walther GmbH between 1920 and 1940. It was fed by an 8-round magazine and chambered in .25 ACP . The Model 8 is a blowback pistol with a concealed hammer and has several design features that were innovative for Walther, including fewer parts and an easier disassembly.
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.
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