Minnesota
Department of Labor and Industry
TONN, ALVIN M
Plumbing - Master Plumber
License number
PM058496
Date granted
04/24/1978
Date expires
12/31/2014
Class
Plumbing - Master Plumber
Status
Issued
Address
16530 105TH AVE N, MAPLE GROVE , MN 55369
mnlicensing.org
ID 22660737
LAST UPDATED 2026-07-25 05:33:11 UTC
LAST UPDATED 2026-07-25 05:33:11 UTC
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