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Callsign:  KN4DVV
Class:  General
Name:  Johnston, Mark R
City:  Linthicum Heights
State:  MD
Zipcode:  21090
Status:  Active
Grant Date:  06/12/2017
Expires:  06/12/2027
Uls:  FCC Info

KN4DVV - Ham operator in Linthicum Heights, MD
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