{
  "$type": "site.standard.document",
  "description": "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.",
  "path": "/patents/1067597",
  "publishedAt": "2006-05-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "G01C21/387",
    "HARMAN BECKER AUTOMOTIVE SYS [DE]"
  ],
  "textContent": "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.",
  "title": "Navigation system"
}