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Priority to NL105457ApriorityCriticalpatent/NL56978C/xx
Application grantedgrantedCritical
Publication of NL56978CpublicationCriticalpatent/NL56978C/xx
F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
F21L4/00—Electric lighting devices with self-contained electric batteries or cells
F21L4/08—Electric lighting devices with self-contained electric batteries or cells characterised by means for in situ recharging of the batteries or cells