Patent ID: 7621163

Claim:
A key for use in a cylinder lock ( 1 ) and key ( 2 ) system, said key ( 2 ) comprising a key blade ( 200 ) having, at a side surface ( 201 ) thereof, a longitudinally extending coded side surface ( 203 ) with longitudinally spaced code surface portions each representing an element of a key code comprising: a longitudinal row of neighbouring code surface portions ( 204 , 205 ) cut into said coded side surface and being grouped in pairs and each pair being located at elevationally specific and generally different levels for co-operation with a respective contact finger of side tumblers of said lock, which occupy a same cavity of longitudinally spaced cavities of a plug of said lock, wherein said longitudinal row of neighbouring code surface portions ( 204 , 205 ) are located at an axial distance from each other in a key longitudinal direction and represent two different key code elements.