Maas Adrianus T.
MacMillan John T.
Magnusson Rolf
Mantel Robert W.
Mantel Machine Products, Inc.
Manufacture de Machines du Haut Rhin, "Manurhin"
Martin Carl D.
Martin Charles Lee
Martini Filho Laudermiro
Maston Michael Joseph
Matsunaga Takehiro
Matzen Nils Denny
Mayville Engineering Company Incorp.
Mayville Engineering Company, Inc.
McClenning Gerald E.
McCoy G. T.
McDanolds Richard T.
McDevitt, Jr. Henry S.
McDonald Keith J.
McSpadden Larry W.