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The first patented spiral push drill or similar spiral screwdriver dates back to 1868 known as the Allard's patent, but since we have never been able to find one in existence, we assume that the 1868 patent was never manufactured in quantity. The earliest we have observed is the F. A. Howard patent, known to have sold in the US in quantity.
Push feed mechanisms in theory give the opportunity to design a safer firearm when it comes to a case rupture (for example due to overpressure or excessive headspace) since the bolt head can be designed with a smaller extractor claw which in turn gives the rest of the bolt head a bigger surface area and therefore better support for the ...
United States v. Miller, 307 U.S. 174 (1939), was a landmark decision of the Supreme Court of the United States that involved a Second Amendment to the United States Constitution challenge to the National Firearms Act of 1934 (NFA). The case is often cited in the ongoing American gun politics debate, as both sides claim that it supports their ...
Dornier Do 335 1943 push-pull fighter, 38 built; Moynet Jupiter 1963 push-pull transport, 2 built; Aero Design DG-1 1977 push-pull racer, 1 built; Rutan Defiant 1978 transport, 19+ built; Rutan Voyager 1984 endurance record aircraft, 1 built [note 4] * Star Kraft SK-700 1994 push-pull transport, [79] Aeronix Airelle 2002 tandem wing 2 seater, 5 ...
Version designed for use in forward air control missions, with underwing ordnance hard points to hold rockets, gun pods or flares. [1] 513 delivered. [4] O-2B Version designed for psychological warfare, equipped with loudspeakers and a leaflet dispenser, and not armed. [1] Thirty-one former civil 337s were converted to O-2Bs. [10]
Robert James Miller (October 14, 1983 – January 25, 2008) was a United States Army Special Forces soldier who posthumously received the Medal of Honor for his actions during the War in Afghanistan. Military career
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Most straight-pull rifles have a striker firing mechanism (without a hammer), [citation needed] and models using a hammer usually have a comparably longer lock time than hammer-less mechanisms. The Anschütz Fortner action used in biathlon is a good example of an ergonomical straight-pull rifle with good economy of motion and high operating ...