Patents Assigned to Kosuage Planning Co. Ltd.
  • Swimming aid
    Patent number: 4548588
    Abstract: A swimming aid includes a plurality of tubular members, each tubular member adapted to fit on a corresponding finger of a human hand and which is open at both ends thereof, and web-like members extending between adjacent ones of the tubular members.
    Type: Grant
    Filed: June 26, 1984
    Date of Patent: October 22, 1985
    Assignee: Kosuage Planning Co. Ltd.
    Inventor: Masana Kosuge