Flashlight formed of two molded parts
作者： Chung Sze-Yuen
DOI:
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摘要:
lens.org 参考文章(5)
Otto W Schotz, Portable lamp switch ,(1964)
Earl L Schofield, Flat pocket hand lamp ,(1947)
Arthur H Moore, Torch head safety flash light ,(1954)
Richard H Parker, Flashlight and reflector assembly therefor ,(1960)
Arthur H Moore, New plastic flashlight head ,(1960)