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  2. Jet injector - Wikipedia

    en.wikipedia.org/wiki/Jet_injector

    A Med-E-Jet vaccination gun from 1980. A jet injector, also known as a jet gun injector, air gun, or pneumatic injector, is a medical instrument that uses a high-pressure jet of liquid medication to penetrate the skin and deliver medication under the skin without a needle. Jet injectors can be single-dose or multi-dose.

  3. 3M - Wikipedia

    en.wikipedia.org/wiki/3M

    3M Company (originally the Minnesota Mining and Manufacturing Company) is an American multinational conglomerate operating in the fields of industry, ...

  4. 3M bookshelf game series - Wikipedia

    en.wikipedia.org/wiki/3M_bookshelf_game_series

    The games were produced by 3M from 1962 to 1975, under the complete company name, The Minnesota Mining & Manufacturing Company. By the mid-1970s, gaming trends had shifted to pen-and-paper role playing games and the 3M game division was suffering losses. In 1976, the entire line was sold to Avalon Hill, which produced a competing line of ...

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  6. Label printer applicator - Wikipedia

    en.wikipedia.org/wiki/Label_printer_applicator

    A label printer applicator is a basic robot that can automatically print and apply pressure-sensitive labels to various products. Some types of labeling include shipping labeling, content labeling, graphic images, and labeling to comply with specific standards such as those of GS1 and Universal Product Code U.P.C.

  7. M3 submachine gun - Wikipedia

    en.wikipedia.org/wiki/M3_submachine_gun

    The M3 is an American .45-caliber submachine gun adopted by the U.S. Army on 12 December 1942, as the United States Submachine Gun, Cal. .45, M3. [12] The M3 was chambered for the same .45 ACP round fired by the Thompson submachine gun , but was cheaper to mass produce and lighter, at the expense of accuracy. [ 12 ]

  8. 122 mm gun M1931/37 (A-19) - Wikipedia

    en.wikipedia.org/wiki/122_mm_gun_M1931/37_(A-19)

    This led to an upgrade of the M1931, handled also by Petrov's design bureau. The barrel of the M1931 was placed on the carriage of a ML-20. The improved gun successfully underwent trials in September–October 1938 and on 29 April 1939 was adopted as 122 mm corps gun M1931/37. Unusually, the new variant, like the old one, was referred to as A-19.

  9. M51 Skysweeper - Wikipedia

    en.wikipedia.org/wiki/M51_Skysweeper

    The M51 Skysweeper (Gun, M51, Antiaircraft or Gun automatic, 75-mm T83E6, and E7, recoil mechanism, and loader rammer) was an anti-aircraft gun deployed in the early 1950s by both the U.S. Army and U.S. Air Force. It was the first such gun to combine a gun laying radar, analog computer (director) and an autoloader on a single carriage.