Massachusetts
Division of Professional Licensure
KEITH G. TRETHEWEY
Plumber
License number
19792
Date granted
03/18/1992
Date expires
05/01/2014
Class
Plumber
Status
Current
licensingma.org
ID 3547999
LAST UPDATED 2026-04-25 03:39:10 UTC
LAST UPDATED 2026-04-25 03:39:10 UTC
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