Tungsten filament lamps for domestic and similar general lighting purposes. Performance requirements
1931 ◽
Vol 15
(Special)
◽
pp. 57-60
1936 ◽
Vol 222
(6)
◽
pp. 750-751
1944 ◽
Vol 9
(5 IEStrans)
◽
pp. 89-92
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