Ogawara Masao
Oguma Masaaki
Okabe Hitoshi
Okamoto Isao
Okumura Yasufumi
Oouchi Kei
Oppenheim Carl E.
Ora S. Jackson
Ott Norbert
Pak Wilson W. S.
Pak Wilson W.s.
Parker John H.
Parker Wallace C.
Pascal Jean-Pierre
Patentes Talgo S.l.
Patentes Talgo Sl
Patentes Talgo S.a.
Paton Hamilton N.k.
Pauch Edward
Paul B. White