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The LA-2A had evolved from Lawrence's first leveling amplifier, the LA-1, which was favored by Gene Autry, and its successor, the LA-2, which had been adopted by CBS and RCA. In 1965, Lawrence sold Teletronix to Babcock Electronics of Costa Mesa, California, and in 1967 Bill Putnam 's company Studio Electronics (eventually renamed UREI ...
The tree provides distributed mechanical support, reducing localised mechanical deflections, which in turn reduces optical distortion. [4] Unlike the applications described above, which are two-dimensional, the whippletrees in telescope mirror support cells are three-dimensional designs, [ 5 ] since the tree must support multiple points over an ...
An extension ladder. A ladder is a vertical or inclined set of rungs or steps commonly used for climbing or descending. There are two types: rigid ladders that are self-supporting or that may be leaned against a vertical surface such as a wall, and rollable ladders, such as those made of rope or aluminium, that may be hung from the top.
Foot Levelers is a foot care, footwear, and whole body health company based in Roanoke, Virginia, and owned by Kent S. Greenawalt. History.
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