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2. Filing cabinet - Wikipedia

   en.wikipedia.org/wiki/Filing_cabinet

   Two tall metal file cabinets for work or home use. A filing cabinet (or sometimes file cabinet in American English) is an item of office furniture for storing paper documents in file folders. [1] In the most simple context, it is an enclosure for drawers in which articles are stored. The two most common forms of filing cabinets are vertical ...

3. Shelf (storage) - Wikipedia

   en.wikipedia.org/wiki/Shelf_(storage)

   A shelf can be attached to a wall or other vertical surface, be suspended from a ceiling, be a part of a free-standing frame unit, or it can be part of a piece of furniture such as a cabinet, bookcase, entertainment center, headboard, and so on. Usually, two to six shelves make up a unit, each shelf being attached perpendicularly to the ...

4. GEA Westfalia Separator - Wikipedia

   en.wikipedia.org/wiki/GEA_Westfalia_Separator

   GEA Westfalia Separator Group GmbH with head office in Oelde, Westphalia is a German manufacturer of separators and decanters which is part of the GEA Group.The company develops procedures and processes for the mechanical clarification and separation of liquids for the food industry, chemicals, pharmaceuticals, biotechnology, energy, shipping and environmental technology.

5. Separator (electricity) - Wikipedia

   en.wikipedia.org/wiki/Separator_(electricity)

   Diagram of a battery with a polymer separator. A separator is a permeable membrane placed between a battery's anode and cathode.The main function of a separator is to keep the two electrodes apart to prevent electrical short circuits while also allowing the transport of ionic charge carriers that are needed to close the circuit during the passage of current in an electrochemical cell.

6. Magnetic separation - Wikipedia

   en.wikipedia.org/wiki/Magnetic_separation

   At these mines, a device called a Wetherill's Magnetic Separator (invented by John Price Wetherill, 1844–1906) [4] was used. In this machine, the raw ore, after calcination was fed onto a conveyor belt which passed underneath two pairs of electromagnets under which further belts ran at right angles to the feed belt. The first pair of balls ...

7. List of inventors - Wikipedia

   en.wikipedia.org/wiki/List_of_inventors

   Semyon Korsakov (1787–1853), Russian Empire – punched card for information storage; Mikhail Koshkin (1898–1940), Russia – T-34 medium tank, the best and most produced tank of World War II [6] Ognjeslav Kostović (1851–1916), Serbia/Russia – arborite (high-strength plywood, an early plastic)