Wisconsin
Department of Safety and Professional Services
Mattes, David C
Professional Engineer
License number
35515-6
Date granted
05/28/2002
Date expires
07/31/2016
Class
Professional Engineer
Status
Active
wisconsinengineering.org
ID 35554402
LAST UPDATED 2026-04-27 11:22:07 UTC
LAST UPDATED 2026-04-27 11:22:07 UTC
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