Tob. Reporter, 1989, 116-10, p. 62, ISSN.0361-5693 Filtered cigarettes with elongated mouthend portion NORMAN A.B.; PERFETTI T.A. US Patent. 4,776,354. R.J. Reynolds....
Tob. Reporter, 1989, 116-5, p. 58, abstr, ISSN.0361-5693 Filter cigarette with segmented sections NORMAN A.B.; PERFETTI T.A.; SAINTSING B.L. US Patent 4,759,380. R.J. Reynolds....
Tob. Reporter, 1987, 114-6, p. 54, ISSN.0361-5693 Adjustable air dilution cigarette NORMAN A.B.; CREAMER G.E. US Patent 4,649,945. RJ Reynolds....