Apparatus for sidetone damping | Patent Number 06539091

US 06539091 B1
Application Number9058698
Publication Number-
Pendency4 years, 11 months, 20 days
Filled DateApr 10, 1998
Priority DateApr 10, 1998
Publication Date-
Expiration DateApr 10, 2018
Inventor/ApplicantsThomas Schertler
ExaminesHAROLD, JEFFEREY F
Art Unit2644
Technology Center2600
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