73139252
Aug 29, 1977
Apr 10, 1979
OIL FIELD CEMENTING EQUIPMENT SUCH AS CASING CENTRALIZERS, CASING SCRAPERS, TUBING CENTRALIZERS, BORE WALL SCRAPERS, STOP RINGS AND THE LIKE
Metal GoodsPORTABLE HAND PUMPS, PIPE VISES, TUBING TONGS, AND THE LIKE USED IN THE DRILLING, COMPLETION AND WORKOVER OF SUBTERRANEAN OIL AND GAS WELLS
Hand Tools