Patents Assigned to Kewa Office & Library Products Co., Ltd.
  • Drawer for catalogue card
    Patent number: 5257859
    Abstract: An apparatus for keeping a stack of catalogue cards in neat order to be used, for example, in a library. If necessary, a librarian can replace a damaged catalogue card with a new one by just pressing a button at the bottom of the drawer to enable a compression spring to eject the metal rod passing through a stack of catalogue cards. Consequently, the librarian can freely rearrange the catalogue cards.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: November 2, 1993
    Assignee: Kewa Office & Library Products Co., Ltd.
    Inventor: Tsung-An Wong