Vehicle door operated foot scraper
作者： Harold J Miller
DOI:
关键词: Orthodontics 、 Foot (unit) 、 Engineering 、 Scraper site
摘要:
lens.org 参考文章(2)
Frank P Mcnulty, Scraping device for footwear ,(1928)
Christopher C Childers, Foot-covering cleaner. ,(1904)