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In 1934, a patent for this design [5] was granted, and in 1949, a trademark for the name "Channellock" was granted, with a first-use date of May 1, 1932. [ 6 ] From this point to the 1960s, the company began to focus more on the fast-growing pliers side of its business, developing improvements to the original design.
Originally developed as a blacksmiths tool, patented in 1899 Canada under CA64246A [4] by Vernon Graham Higgins and sold out of Fortuna, California by the patentee. . Advertised in the November 1899 issue of "The Blacksmith and Wheelwright", [5] an American periodical; the original variants had longer reins than the modern equivalent, and may not have had the groves in
Medieval pincers found in Hamburg-Harburg (15th/16th century) As pliers in the general sense are an ancient and simple invention, no single inventor can be credited.Early metal working processes from several millennia BCE would have required plier-like devices to handle hot materials in the process of smithing or casting.
The Great Lakes Waterway (GLW) is a system of natural channels and artificial locks and canals that enable navigation between the North American Great Lakes. [1] Though all of the lakes are naturally connected as a chain, water travel between the lakes was impeded for centuries by obstacles such as Niagara Falls and the rapids of the St. Marys ...
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The LockPickingLawyer YouTube channel was started in 2015. [5] In 2018, the channel attracted attention after posting a video of a bicycle lock being cut open in two seconds. [6] Other videos include picking a car lock, though it is noted that the methods used are not capable of starting the car. [7] The channel also accepts challenges sent in ...
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The locks themselves were made of 2,046,100 cu yd (1,564,000 m 3) of concrete. The quantity of material needed to construct the locks required extensive measures to be put in place to handle the stone and cement. Stone was brought from Portobelo to the Gatun locks, while the work on the Pacific side used stone quarried from Ancon Hill. [8]
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