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William Earl Dunnigan
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Garland, TX, US
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last 30 patents
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Patent Grant
Control head with electroluminescent panel in land mobile radio
Patent number
9,262,958
Issue date
Feb 16, 2016
E.F. Johnson Company
Troy Frandsen
G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Patent Grant
Automatic call distribution (ACD) switching system having distribut...
Patent number
4,893,301
Issue date
Jan 9, 1990
Teknekron Infoswitch Corporation
Gerald W. Andrews
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Patents Applications
last 30 patents
Information
Patent Application
CONTROL HEAD WITH ELECTROLUMINESCENT PANEL IN LAND MOBILE RADIO
Publication number
20160196784
Publication date
Jul 7, 2016
E.F. Johnson Company
Troy Frandsen
G06 - COMPUTING CALCULATING COUNTING
Information
Patent Application
CONTROL HEAD WITH ELECTROLUMINESCENT PANEL IN LAND MOBILE RADIO
Publication number
20160198540
Publication date
Jul 7, 2016
E.F. Johnson Company
Troy Frandsen
F21 - LIGHTING
Information
Patent Application
CONTROL HEAD WITH ELECTROLUMINESCENT PANEL IN LAND MOBILE RADIO
Publication number
20100141565
Publication date
Jun 10, 2010
E.F. Johnson Company
Troy Frandsen
G06 - COMPUTING CALCULATING COUNTING