Anstellschraube fuer Bohrstangeneinsaetze

作者: Karl Hohner , Carl Urlberger

DOI:

关键词: Geology

摘要:

参考文章(3)
Millard K. Macafee, Adjustable blade reamer ,(1945)
Welsby Silas, Welsby James Saville, Improvements in or relating to reamers or boring bars ,(1950)