Patents Assigned to Advanced Technologies Limited
  • Measuring device
    Patent number: 5577330
    Abstract: An electronic hand holdable measuring device for measuring dimension of an article by rolling the device across surface of the article includes a housing 10 and a roller sub-assembly 11. When the roller is worn it can be readily replaced together with an associated raster disc 23 forming part of the sub-assembly. An optical reader is permanently mounted inside the housing.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: November 26, 1996
    Assignee: Advanced Technologies Limited
    Inventor: Sidney Cheng