Illumination – Modifier mountable on light source envelope
Patent
1977-07-01
1979-07-31
Nelson, Peter A.
Illumination
Modifier mountable on light source envelope
362187, 362278, 362306, 362364, 362368, 362390, F21M 314
Patent
active
041632761
ABSTRACT:
Headlights for vehicles, especially such which are to be subjected to rough treatment have a casing of resilient and yielding material. The casing is cup shaped and near its edge, at the open side of the cup, an annular groove is provided destined to hold a transparent lens like front wall.
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patent: 3654471 (1972-04-01), Nilsson
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