Bag opening and closing machine
作者： Philip Bock
DOI:
关键词:
摘要:
lens.org 参考文章(2)
William C Kerker, Automatic bag packaging machine and method ,(1957)
Frank F Lindstaedt, Fred S Wright, Bag filling machine ,(1952)
作者： Philip Bock
DOI:
关键词:
摘要: