Camera assembly for photographing cavity walls
作者： Raymond G Piety
DOI:
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摘要:
lens.org 参考文章(4)
Albert J Kunze, Apparatus for making dental records ,(1938)
Rosenhaft Walter, Hand camera for the production therewith of small-sized photographs in series ,(1939)
Reinhold Thomas, Stratigraphic measuring instrument ,(1924)
Richardson Wilcox John, Davis Wilcox Eugene, Drill hole apparatus ,(1938)