Single-pole devices, e.g. holder for supporting one end of a tubular incandescent or neon lamp

Full Title

Coupling devices specially adapted for supporting apparatus and having one part acting as a holder providing support and electrical connection via a counterpart which is structurally associated with the apparatus, e.g. lamp holders; Separate parts thereof > Single-pole devices, e.g. holder for supporting one end of a tubular incandescent or neon lamp