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Andre Blondel
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Vessels And Coating Films For Discharge Lamps
(AREA)
Abstract
9316. Blondel, A. April 24. Reflectors. - In arc electric lamps the economizer 10, around the upper carbon 1, a horizontal protective partition 9, and an inner ring 14 upon the globe, may be formed with reflecting surfaces.
GB190309316D1903-04-241903-04-24Improvements in or relating to Arc Lamps.
ExpiredGB190309316A
(en)