73043763
Feb 10, 1975
Oct 18, 1977
CORROSION-RESISTANT PROTECTIVE THERMOPLASTIC OR THERMOSETTING PLASTIC COATINGS IN INDUSTRIAL USE
PaintsINSPECTION OF TUBULAR MEMBERS, SUCH AS OIL FIELD PIPE, TUBING AND SIMILAR ITEMS, AND ELECTRONICALLY SORTING AND IDENTIFYING OIL-FIELD PIPE OF OTHERS BY TYPE OR GRADE
Computer and Scientific