Patents Assigned to Sandra Ward
  • Plexiglas speakers
    Patent number: 3967065
    Abstract: A novel speaker unit for incorporating into a high fidelity and sound system, the speaker unit consisting of a cabinet made of plexiglas, the plexiglas cabinet enclosing tweeter, midrange and woofer speakers, and the cabinet also carrying a crossover network with a volume knob and also carrying a female phono plugged as input connection.
    Type: Grant
    Filed: July 21, 1975
    Date of Patent: June 29, 1976
    Assignee: Sandra Ward
    Inventor: James M. Ward, deceased