91-01/Polh.again

  Polhemus, Inc.
  P.O. Box 560
  1 Hercules Drive
  Colchester, VT 05546 (or is this 05446?)
  802-655-3159
  802-655-1439 (FAX)

  3SPACE Isotrak(R)  $ 3,145
    Tracks a single sensor, can be used as a 3D mouse.

  3SPACE Tracker     $11,000
    Tracks multiple sensors, good for Eyephone, DataGlove, etc.

  3SPACE Digitizer   $13,900
    Tracks sensor mounted in a stylus for digitizing objects.

And for you hackers who want to figure out how it works,
look up the following patents:

  Number:   3,983,474
  Title:    Tracking and Determining Orientation of Object using
            Coordinate Transformation Means, System and Process
  Inventor: Jack Kulpers
  Assignee: Polhemus Navigation Sciences, Inc.
  Date:     Sept. 28, 1976

  Number:   4,017,858
  Title:    Apparatus for Generating a Nutating Electromagnetic Field
  Inventor: Jack Kulpers
  Assignee: Polhemus Navigation Sciences, Inc.
  Date:     Apr. 12, 1977

