P
PatentIndex
Search
Landscape
Sign in
Inventor
SCHWAERTZEL HEINZ
DE
2 patents
Patents
2 patents
US5499303A
Mar 12, 1996
Correction of the gaze direction for a videophone
SIEMENS AG
46 citations
89
US4535441A
Aug 13, 1985
Communication system for stationary and mobile subscribers
SIEMENS AG
9 citations
68