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According to the text of his patent, Bang's tape measure was an improvement on other versions previously designed. [22] The spring tape measure has existed in the U.S. since Bang's patent in 1864, but its usage did not become very popular due to the difficulty in communication from one town to another and the expense of the tape measure.
Lux meter for measuring illuminance, i.e. incident luminous flux per unit area; Luminance meter for measuring luminance, i.e. luminous flux per unit area and unit solid angle; Light meter, an instrument used to set photographic exposures. It can be either a lux meter (incident-light meter) or a luminance meter (reflected-light meter), and is ...
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Of the product range the "made to measure" suits were a success, offering a cheap tailored opportunity for customers at the time, costing only 30 shillings, equivalent to £203 in 2023. [1] The company used agency representatives in local areas as a form of credit control and to manage sales, with most goods being sold on credit.
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Length measurement, distance measurement, or range measurement (ranging) all refer to the many ways in which length, distance, or range can be measured.The most commonly used approaches are the rulers, followed by transit-time methods and the interferometer methods based upon the speed of light.
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