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Edward Charles Berriman
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Individual
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Common Detailed Techniques For Electron Tubes Or Discharge Tubes
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Abstract
28,489. Berriman, E. C. Dec. 31. Smokers' combination articles; tobacco pipes.- A cap 6, hinged to a metal ferrule 4 mounted on the tobacco - pipe bowl, is provided with a draught tube 10 having a plate 13 which is adapted to act as a stopper. The draught tube is provided with a spring 14.