Patent ID: 9745745
Date: 2017-08-29
CPC Classifications: E04B

Claim:
1. A ceiling framework comprising: main beams and cross beams, which are connected to one another and transversally to one another by connectors borne by one type of beams among the main beams and the cross beams, and engaged in apertures made in the other type of beams among the main beams and the cross beams, so as to receive tiles, wherein, for each beam having the apertures, the apertures are marked with symbols on each face of the beam, the symbols marked on each face being repeated sequentially over a length of the beam, a period of a sequence of the symbols on each face spans a size of one tile of the tiles, and each of the apertures in a length of the beam corresponding to the period is marked with a different one of the symbols for each observed face, and wherein the symbols are the same on either face of the beam, starting with a same symbol on each left-hand or right-hand end for each observed face.