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  2. Harbor Freight Tools - Wikipedia

    en.wikipedia.org/wiki/Harbor_Freight_Tools

    Harbor Freight Tools won a declassification of the class action; that is, the court found that all the individual situations were not similar enough to be judged as a single class, and that their claims would require an individual-by-individual inquiry, so the case could not be handled on a class basis.

  3. Ring cent - Wikipedia

    en.wikipedia.org/wiki/Ring_cent

    The ring cent or holey cent was a one-cent pattern coin first struck in various compositions and designs between 1850 and 1851 as part of an experiment on producing a cent with a reduced weight and diameter, as the rising price of copper had caused cents to cost more than their face value to produce.

  4. Neil Robertson stretcher - Wikipedia

    en.wikipedia.org/wiki/Neil_Robertson_stretcher

    The Neil Robertson stretcher (NRS) is believed to have been influenced by a Japanese stretcher made from bamboo. The NRS was designed with the purpose of packaging casualties into a compact form, allowing for rescue operations in spaces with limited openings and facilitating movement through vertical escape hatches while minimizing slippage.

  5. Coining (metalworking) - Wikipedia

    en.wikipedia.org/wiki/Coining_(metalworking)

    Coining is a form of precision stamping in which a workpiece is subjected to a sufficiently high stress to induce plastic flow on the surface of the material. A beneficial feature is that in some metals, the plastic flow reduces surface grain size, and work hardens the surface, while the material deeper in the part retains its toughness and ...

  6. Concentric reducer - Wikipedia

    en.wikipedia.org/wiki/Concentric_reducer

    A concentric reducer is used to join pipe sections or tube sections on the same axis. [1] The concentric reducer is cone -shaped, and is used when there is a shift in diameter between pipes. [ 1 ] For example, when a 1" pipe transitions into a 3/4" pipe and the top or bottom of the pipe doesn't need to remain level. [ 2 ]

  7. Stretcher - Wikipedia

    en.wikipedia.org/wiki/Stretcher

    A stretcher, gurney, litter, or pram [1] is an apparatus used for moving patients who require medical care. A basic type (cot or litter) must be carried by two or more people. A wheeled stretcher (known as a gurney, trolley, bed or cart) is often equipped with variable height frames, wheels, tracks, or skids.