Convention, Volume 21909 |
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Halaman 478
... tungsten lamps which have replaced welsbach lamps ; i . e . , has the cost of tungsten over mantle renewals created any prejudice against the electric service ? 28. What size tungsten lamp have you found to be most effective in ...
... tungsten lamps which have replaced welsbach lamps ; i . e . , has the cost of tungsten over mantle renewals created any prejudice against the electric service ? 28. What size tungsten lamp have you found to be most effective in ...
Halaman 508
... tungsten lamp ; in fact , we consider that our present single meter rate , when ap- plied to tungsten lamps , is cheap enough for the largest users of light on our circuits , either as to the number of lights or hours of burning . We ...
... tungsten lamp ; in fact , we consider that our present single meter rate , when ap- plied to tungsten lamps , is cheap enough for the largest users of light on our circuits , either as to the number of lights or hours of burning . We ...
Halaman 523
... tungsten lamps at cost , the customer taking the responsibility of early burnouts . We showed each customer that the light would burn , before delivering the lamp to him , and told him that if it burned out within twenty - five hours we ...
... tungsten lamps at cost , the customer taking the responsibility of early burnouts . We showed each customer that the light would burn , before delivering the lamp to him , and told him that if it burned out within twenty - five hours we ...
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Conventions of the Association | xiii |
ReportCommittee on Meters | xxiii |
Report Committee on Progress T Commerford Martin | xxxiii |
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