Olcon Engineering AB
Olin Brett Mathew
Oregon Etablissement fur Patentverwerting
Osterloh James D
Osterman Edmund Joseph
Oyler Patrick R.
Pacific Gunsight Company
Palangio Tom
Palkowitsh Greg L
Palmer Anthony Martin
Patrick Dale M.
Paull Jolanta
Persson Per-Anders
Peters Arthur F.
Petersen Robert
Peterson Gerald C.
Philipp Holger
Pickens Ralph D.
Pietsch Manfred
Piper, III Charles John