Massachusetts
Board of Regulations and Standards
DAVID L YENCHO
Engineering Licenses - Oil Burner Technician Certificate
License number
BU-026502
Date expires
04/14/2013
Class
Engineering Licenses - Oil Burner Technician Certificate
Status
Address
massbuilding.org
ID 42460444
LAST UPDATED 2026-06-13 18:05:37 UTC
LAST UPDATED 2026-06-13 18:05:37 UTC
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