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An Affixing Machine is a machine that affixes postage stamps to an envelope, postcard or wrapper. [1] Affixing machines first appeared in the 1850s [2] but were not widely used until the early 20th century. [3] Stamp affixing machines were brought about by the need to mechanically affix stamps for bulk processing of mail. [4]
A wheel machine is a high-power, high-efficiency blasting operation with recyclable abrasive (typically steel or stainless-steel shot, cut wire, grit, or similarly sized pellets). Specialized wheel blast machines propel plastic abrasive in a cryogenic chamber and is usually used for deflashing plastic and rubber components. The size of the ...
Ex-Cell-O Corporation (commonly known as Ex-Cell-O) was an American manufacturer of machinery and machine tools located in suburban Detroit, Michigan, United States. The company was in operation from 1919 to 2006.
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The original target was onions (chosen for their large cell size), and the device was used to deliver particles coated with a marker gene which would relay a signal if proper insertion of the DNA transcript occurred. [7] Genetic transformation was demonstrated upon observed expression of the marker gene within onion cells.
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