Inventor

LUEBBERT WILLIAM K

4 patents

Patents

4 patents

US5033917AJul 23, 1991

Chip extraction apparatus

MC DONNELL DOUGLAS CORP76 citations91

US4093395AJun 6, 1978

Drill and combined drill countersink

MC DONNELL DOUGLAS CORP27 citations77

US5131793AJul 21, 1992

Feed mechanism

MC DONNELL DOUGLAS CORP12 citations70

US4285620AAug 25, 1981

Symmetrical spur point drill

MC DONNELL DOUGLAS CORP16 citations68