Minnesota
Department of Labor and Industry
OLSEN, WILLIAM C
Plumbing - Backflow Prevention Rebuilder
License number
BF060737
Date granted
01/22/1994
Date expires
12/31/2015
Class
Plumbing - Backflow Prevention Rebuilder
Status
Issued
Address
146 FAIRFAX ST, WINONA , MN 55987
mnlicensing.org
ID 22412340
LAST UPDATED 2026-05-09 17:21:51 UTC
LAST UPDATED 2026-05-09 17:21:51 UTC
This website is unaffiliated with the Department of Labor and Industry. Please verify all information directly with the relevant official government authority.