Minnesota
Department of Labor and Industry
TREFETHEN, MICHAEL D
Plumbing - Reg Unl Plumber
License number
PA060674
Date granted
09/08/1989
Date expires
06/30/1997
Class
Plumbing - Reg Unl Plumber
Status
Expired
Address
21787 TATRO RD, IRONTON , MN 56455
mnlicensing.org
ID 22681909
LAST UPDATED 2026-04-11 14:36:01 UTC
LAST UPDATED 2026-04-11 14:36:01 UTC
This website is unaffiliated with the Department of Labor and Industry. Please verify all information directly with the relevant official government authority.