37 CFR 1.47 Notice by Publication Notice is hereby given of the filing of an national stage application with a petition under 37 CFR 1.47 requesting acceptance of the application without the signature of all inventors. The petition has been granted. A notice has been sent to the last known address of the non-signing inventor. The inventor whose signature is missing (Peter Fischer) may join in the application by promptly filing an appropriate oath or Declaration complying with 37 CFR 1.63. The international application number is PCT/EP93/03435 and was filed on 07 December 1993 in the names of Guenter Dungs, Klaus Moessinger, Guenter Thaller and Peter Fischer for the invention entitled Air Filter. The national stage application number is 08/454,216 and has a 35 U.S.C. 371 date of 18 December 1995.