Delaware
Division of Professional Regulation
John L. Steen, JR.
Plumbing - Master Plumber
License number
PL-0000581
Date granted
01/01/1900
Date expires
10/31/2014
Class
Plumbing - Master Plumber
Status
Active
Address
Wilmington DE 19804
delawarelicensing.com
ID 20738232
LAST UPDATED 2026-03-18 22:32:40 UTC
LAST UPDATED 2026-03-18 22:32:40 UTC
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