Wisconsin
Department of Safety and Professional Services
Ziehr, Donald J
Professional Engineer
License number
10840-6
Date granted
06/28/1968
Date expires
07/31/2000
Class
Professional Engineer
Status
wisconsinengineering.org
ID 12573320
LAST UPDATED 2026-05-04 06:20:52 UTC
LAST UPDATED 2026-05-04 06:20:52 UTC
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