Demuth Robert
Denney James J.
Dent Michael J.
Dewar Bruce I.
Disco Abrasive Systems, Ltd.
Disco Co., Ltd.
Dlouhy Jiri
Dobson Keith F.
Doerr Kurt
Domas Friedrich
Domenella David D.
Dotson George
Dotson and Evans Inc.
Doty John S
Doy Toshiroh
Doyle's Tool and Gauge Co.
Drawl William R.
Dreiling Ronald L.
Du Bois Loring E.
Dunnington Bruce W.