Herbert L. Nichols

Herbert L. Nichols, Jr., is a private excavation consultant and the author of Excavator Operation and Heavy Equipment Repair. David A. Day, P.E. is a consultant with ABCO Engineering Corporation.

Herbert L. Nichols, Jr., is a private excavation consultant and the author of Excavator Operation and Heavy Equipment Repair. David A. Day, P.E. is a consultant with ABCO Engineering Corporation. See less