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Johannes Boden
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H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
H01C7/006—Thin film resistors
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GB189412229D1894-06-231894-06-23Improved Apparatus for Checking the Withdrawal of Liquids from Reservoirs containing the same.
ExpiredGB189412229A
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