Massachusetts
Division of Professional Licensure
JOHN O. BUTLER
Engineer
License number
7365
Date granted
03/09/1956
Date expires
06/30/2014
Class
Engineer
Status
Current
licensingma.org
ID 3379444
LAST UPDATED 2026-04-15 15:58:49 UTC
LAST UPDATED 2026-04-15 15:58:49 UTC
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