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  2. Retort stand - Wikipedia

    en.wikipedia.org/wiki/Retort_stand

    In chemistry, a retort stand, also called a clamp stand, [1] a ring stand, [2] or a support stand, [3] is a piece of scientific equipment intended to support other pieces of equipment and glassware — for instance, burettes, test tubes and flasks. [4] The typical ring stand consists of a heavy base and a vertical rod, both usually made of metal.

  3. Clamp holder - Wikipedia

    en.wikipedia.org/wiki/Clamp_holder

    A clamp holder or clamp fastener is a piece of laboratory apparatus that is used to secure laboratory clamps, such as extension-type utility clamps, or other attachments to a retort stand or lab frame. [1] The material can be made up of brass, cast iron, stainless steel, aluminium or nickel-plated zinc. [2]

  4. Cup holder - Wikipedia

    en.wikipedia.org/wiki/Cup_holder

    These cup holders are usually constructed by thin stainless steel plates. Some of them are covered by rubber. There are now many cup holders available which can be screwed to the walls of boats and buses and recreational vehicles. Another popular cup holder for boats is the "drop in" cup holder. This is a round plastic item, that has a lip at ...

  5. Coffee cup sleeve - Wikipedia

    en.wikipedia.org/wiki/Coffee_cup_sleeve

    Some paper cup holders carry advertisements. The coffee sleeve was invented in 1991 by Jay Sorensen [1] and patented in 1995 [2] (under the trademarked name Java Jacket), and are now commonly utilized by coffee houses and other vendors that sell hot beverages dispensed in disposable paper cups. There are a number of patents that cover various ...

  6. Burette clamp - Wikipedia

    en.wikipedia.org/wiki/Burette_clamp

    Burette clamp is a scientific equipment which used specifically to hold and secure a burette on a stand, so that a burette is fixed and more convenient for the experiment. [1] Burette clamps can be made with many materials such as plastic and cast iron. However, an iron clamp with a rubber knob to hold the burette are usually more durable.

  7. Zarf - Wikipedia

    en.wikipedia.org/wiki/Zarf

    However, because the holder was more visible, it was typically more heavily ornamented. When coffee began to be served in cardboard cups in the late 20th century, the zarf became disposable as well. The corrugated coffee cup sleeve was invented in 1991.

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