Massachusetts
Division of Professional Licensure
JOHN R. AMBACH
Plumber
License number
34314
Date granted
10/20/2009
Date expires
05/01/2014
Class
Plumber
Status
Current
licensingma.org
ID 3575914
LAST UPDATED 2026-04-30 00:12:33 UTC
LAST UPDATED 2026-04-30 00:12:33 UTC
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