Missouri
Division of Professional Registration
Yehlen, Mark Henry
Professional Engineer
License number
027640
Date granted
03/01/1996
Date expires
12/31/2014
Class
Professional Engineer
Status
Clear
Address
3220 Chatham Street
licensingmissouri.org
ID 1553397
LAST UPDATED 2026-03-31 11:38:51 UTC
LAST UPDATED 2026-03-31 11:38:51 UTC
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