Massachusetts
Division of Professional Licensure
ROBERT K. TRETHWEY
Sheet Metal Workers
License number
4631
Date granted
11/24/2010
Date expires
06/28/2014
Class
Sheet Metal Workers
Status
Current
licensingma.org
ID 3807864
LAST UPDATED 2026-06-20 18:32:04 UTC
LAST UPDATED 2026-06-20 18:32:04 UTC
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