New plastic flashlight head
作者： Arthur H Moore
DOI:
关键词: Anatomy 、 Materials science 、 Head (vessel) 、 Flashlight
摘要:
lens.org 参考文章(3)
Wilfred O Langille, Sewing machine lighting fixture ,(1937)
Arthur H Moore, Torch head safety flash light ,(1954)
Edward J Garland, Flashlight reflector assembly for prefocused lamp mounting ,(1952)