CHRISTENSEN DIAMOND PRODUCTS GMBH Trademarks
BODYLESS
Filed: September 29, 1976
STABILIZERS FOR WELL DRILL STRINGS; AND PARTS THEREOF
Owned by: CHRISTENSEN DIAMOND PRODUCTS GMBH
Serial Number: 73101465
JOINT-SAVER
Filed: September 29, 1976
WEAR SLEEVES FOR JOINTS OF WELL DRILL TOOLS AND TUBES; AND PARTS THEREOF
Owned by: CHRISTENSEN DIAMOND PRODUCTS GMBH
Serial Number: 73101469
SHOCK-EZE
Filed: September 29, 1976
DAMPING APPARATUS FOR WELL DRILL STRINGS; AND PARTS THEREOF
Owned by: CHRISTENSEN DIAMOND PRODUCTS GMBH
Serial Number: 73101471
