Electrical and scientific apparatus Trademarks Filed in May 28, 1948
HELI-COIL
Filed: May 28, 1948
GAGES FOR USE IN SCREW CONNECTIONS WITH OR WITHOUT WIRE THREAD-NAMELY, SCREW THREAD GAGES AND FLUSH GAGES
Owned by: BÖLLHOFF PRODUKTION GMBH
Serial Number: 71558028
