{
  "$type": "site.standard.document",
  "description": "A protruding knurling unit includes: a first knurling portion extending at an incline with respect to a bottom surface; and a plurality of second knurling portions each extending at an incline with respect to the bottom surface. The first knurling portion includes a first knurling portion bottom…",
  "path": "/patents/1390224",
  "publishedAt": "2026-06-10T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60C13/001",
    "KUMHO TIRE CO INC [KR]"
  ],
  "textContent": "A protruding knurling unit includes: a first knurling portion extending at an incline with respect to a bottom surface; and a plurality of second knurling portions each extending at an incline with respect to the bottom surface. The first knurling portion includes a first knurling portion bottom. Each of the plurality of second knurling portions includes a second knurling portion bottom. A distance between the second knurling portion bottoms of the plurality of second knurling portions is shorter than a length of the first knurling portion bottom.",
  "title": "PROTRUDING KNURLING UNIT AND TIRE INCLUDING THE SAME"
}