About Richard J Helferich
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W2W by RICHARD J. HELFERICH (Track this)
Intl: (009) Electrical and scientific apparatus; (038) Telecommunications US: 021; 023; 026; 036; 038; 100; 101; 104 Filing date: 15-Nov-1999 Serial number: 75848826
WIRELESS2WEB by RICHARD J. HELFERICH (Track this)
Intl: (038) Telecommunications US: 100; 101; 104 Filing date: 24-Sep-1999 Serial number: 75807714
VOICEBACK by RICHARD J. HELFERICH (Track this)
Intl: (038) Telecommunications US: 100; 101; 104 Filing date: 22-Jul-1999 Serial number: 75757770
TALKBACK by RICHARD J. HELFERICH (Track this)
Intl: (038) Telecommunications US: 100; 101; 104 Filing date: 22-Jul-1999 Serial number: 75757769