{
  "$type": "site.standard.document",
  "description": "The vehicle (1) has a distance sensor (3) on the rear bumper. It may be a video camera, a radar set or sonar equipment. The sensor is connected to the display unit (2) in the cab by a radio link, which may enable different tractor units to be used with different trailers or semitrailers. Digital…",
  "path": "/patents/1099421",
  "publishedAt": "2003-01-08T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60Q5/00",
    "MEKRA LANG GMBH & CO KG [DE]"
  ],
  "textContent": "The vehicle (1) has a distance sensor (3) on the rear bumper. It may be a video camera, a radar set or sonar equipment. The sensor is connected to the display unit (2) in the cab by a radio link, which may enable different tractor units to be used with different trailers or semitrailers. Digital data transmission is used.",
  "title": "Parking aid for a vehicle"
}