Tob. Reporter, 1990, 117-10, p. 79, ISSN.0361-5693 Producing and conveying cigarette pack blanks FOCKE H.; LIEDTKE K. US patent 4,929,226. Focke & Co. (GmbH & Co.)...
Tob. Reporter, 1989, 116-1, p. 50, ISSN.0361-5693 Cigarette pack with improved sealing FOCKE H.; LIEDTKE K. US Patent 4,776,461. Focke & Co....
Tob. Reporter, 1988, 115-11, p. 68, ISSN.0361-5693 Material-saving hinge-lid pack FOCKE H.; LIEDTKE K. US Patent 4,753,384. Focke & Co....
Tob. Reporter, 1989, 116-3, p. 58, abstr, ISSN.0361-5693 Cuboid pack for cigarettes with transverse cut lines FOCKE H.; LIEDTKE K. US Patent 4,789,060. Focke & Co....
Tob. Reporter, 1989, 116-8, p. 50, ISSN.0361-5693 Packaging machine for cigarette packs FOCKE H.; FOCKE J.; LIEDTKE K. US Patent 4,819,407. Focke & Co....
Tob. Reporter, 1986, 113-9, p. 76, ISSN.0361-5693 Apparatus for forming groups of cigarettes FOCKE H.; LIEDTKE K. US Patent 4,592,374. Focke & Co....