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Thomas Hamilton-Adams
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6405. Adams, T. Hamilton-. March 19. Arc lamps.-Carbonholders for clutch lamps are made of the same external diameter as the carbons, and the latter are formed with reduced portions c, as shown, to fit tightly into the holders a. The holder is thus able to pass through the clutch, aud the carbon may be nearly all consumed,
GB190306405D1903-03-191903-03-19Improvements in Carbon Holders for Electric Arc Lamps.
ExpiredGB190306405A
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