Patents Represented by Law Firm Wetheroth, Lind & Ponack
  • Electric vacuum cleaner
    Patent number: D313680
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: January 8, 1991
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Fumioki Ichihara, Isamu Shinozaki