Patents Assigned to Torriani & C. S. p.A
  • Patent number: 4863331
    Abstract: In order to form a hard book binding having a middle covering and two side coverings, a unitary covering is first formed by securing the side coverings onto the middle covering; thereafter, a spine member and two coverboard members are attached, in mutually spaced apart relationship, to said unitary covering at the middle covering and the side coverings, respectively.
    Type: Grant
    Filed: April 7, 1987
    Date of Patent: September 5, 1989
    Assignee: Torriani & C. S. p.A
    Inventor: Alessandro Torti