Minnesota
Department of Labor and Industry
WALLER, DOUGLAS L
Plumbing - Backflow Prevention Rebuilder
License number
BF058432
Date granted
07/13/1988
Date expires
12/31/2016
Class
Plumbing - Backflow Prevention Rebuilder
Status
Issued
Address
7236 OAK GROVE BLVD, RICHFIELD , MN 55423
mnlicensing.org
ID 22414088
LAST UPDATED 2026-08-18 19:43:16 UTC
LAST UPDATED 2026-08-18 19:43:16 UTC
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