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Expired
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GB4917/28A
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Individual
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Individual
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Publication of GB286687ApublicationCriticalpatent/GB286687A/en
H01K1/14—Incandescent bodies characterised by the shape
Landscapes
Resistance Heating
(AREA)
Abstract
286,687. Erber, B. March 9, 1927, [Convention date]. Filaments; residual gases. - In bulbs having filaments of carbide of tantalum or other metal of the tantalum group, as described in Specification 8840/06, an inert gas filling is provided to prevent decomposition of the carbide. The filaments may have a metal core and may be of helical form.
GB4917/28A1927-03-091928-02-16An improved electric incandescent lamp with an incandescent body of tantalum carbide
ExpiredGB286687A
(en)