Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filedfiledCritical
Priority to NL76825ApriorityCriticalpatent/NL50081C/xx
Application grantedgrantedCritical
Publication of NL50081CpublicationCriticalpatent/NL50081C/xx
H01K9/00—Lamps having two or more incandescent bodies separately heated
H01K9/02—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies
H01K9/04—Lamps having two or more incandescent bodies separately heated to provide substitution in the event of failure of one of the bodies with built-in manually operated switch
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01K—ELECTRIC INCANDESCENT LAMPS
H01K1/00—Details
H01K1/42—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp
H01K1/46—Means forming part of the lamp for the purpose of providing electrical connection, or support for, the lamp supported by a separate part, e.g. base, cap