CONE MARKING APPARATUS
作者： Jacobus J. H. G. Daamen
DOI:
关键词: Cone (formal languages) 、 Optics 、 Materials science
摘要:
lens.org 参考文章(4)
Allison M Macfarland, George H Nelson, Dry cell apparatus ,(1941)
Howard V Humphries, Cone marking apparatus ,(1957)
Donald M Phillips, Method and apparatus for making electron discharge devices having luminescent screens ,(1958)
Leibner Robert, Pipe cleaning and coating apparatus ,(1960)