Perlo Juan Francisco
Persoons James J.
Peterson William Todd
Petropoulos Labros S.
Petropoulos Labros Spiridon
Philips Medical Systems (Cleveland)
Phillips Roger C.
Phospho-Energetics, Inc.
Physikalisch-Technische Bundesanstalt Braunschweig und Berlin
Picker International, Ltd
Picker Nordstar Inc.
Picker Nordstar Oy
Picker, Limited
Piel Joseph Edward
Pikelja Velibor
Pillsbury Robert D.
Pittaluga Stefano
Placidi Guiseppe
Popovici Adrei
Popp Walter