G - Physics
01
C
G01C 21/00 (2006.01) G01C 21/36 (2006.01)
Patent
CA 2524186
The invention is directed to a navigation system comprising a non-volatile, writable memory for storing digital navigation data and a means for checking an access code to allow the access of digital navigation data stored in the memory
Harman Becker Automotive Systems Gmbh
Oyen Wiggs Green & Mutala Llp
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