TY - BOOK ID - 136032309 TI - Supplementary code of fair competition for the diamond core drill manufacturing industry (a division of the machinery and allied products industry) as approved on May 31, 1934. PY - 1934 PB - Washington : United States Government Printing Office, DB - UniCat KW - Diamond bits. KW - Bits (Drilling and boring) UR - https://www.unicat.be/uniCat?func=search&query=sysid:136032309 AB - ER -