{
  "$type": "site.standard.document",
  "description": "Viewing aids useful for doors and windows, especially in aeroplanes, comprising as an essential element a pane (1) made of a transparent material, which pane has at least one optically active surface (14) comprising a plurality, i. e. at least two, of prisms, or a Fresnel lens, or a combination of…",
  "path": "/patents/1105502",
  "publishedAt": "2002-04-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B60R1/001",
    "SCHORNING MARTIN [DE]"
  ],
  "textContent": "Viewing aids useful for doors and windows, especially in aeroplanes, comprising as an essential element a pane (1) made of a transparent material, which pane has at least one optically active surface (14) comprising a plurality, i. e. at least two, of prisms, or a Fresnel lens, or a combination of both.",
  "title": "Viewing aid for doors and windows"
}