Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 554
Shaping and mounting the filaments of Mazda half-watt lamps. … Sealing-in Mazda half-watt lamps. [This completes our scries of uoUs on the manufacture of electric incandescent lamps. We propose, in a subsequent issue, to deal with the manufacture of lamps amimantles used in the gas industry in a similar maimer.—Ed.] 540 THK ILLUMINATING ENGINEER srov.) HEAT…
Lighting
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