{
  "$type": "site.standard.document",
  "description": "The hook has a main body (12) with a hooking mouth (24) ending in a curved jaw (26), and a shutter (14) mounted to move in a hole of main body to close a part of mouth in a locked configuration. The shutter is made from a quenched and tempered steel surface hardened in a zone (54, 56) adapted to…",
  "path": "/patents/1088443",
  "publishedAt": "2004-03-31T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60D1/00",
    "CBM SPA [IT]"
  ],
  "textContent": "The hook has a main body (12) with a hooking mouth (24) ending in a curved jaw (26), and a shutter (14) mounted to move in a hole of main body to close a part of mouth in a locked configuration. The shutter is made from a quenched and tempered steel surface hardened in a zone (54, 56) adapted to come into contact in the locked configuration with a coupling ball housed in the mouth.",
  "title": "Improvements to an upper hook for a three-point hitch"
}