Marlott John A.
Marocco Giuseppe
Marocco Guiseppe
Marques Peter
Marron Antonio G.
Marron Victor G.
Maruhachi Ceramics of America
Marx Joerg
Maschinenfabrik Meyer & Burger AG
Masonry Technology Incorporated
Matsuda Takeharu
Matsukura Yasumasa
Matsuzawa Misao
Matteucci Francesco
Matvienko Viktor V.
Matysick Frank
Mayer Wolfgang
Mazaki Shigeru
McAulay Shawn V.
McClain Harold F.