Patents Assigned to Olle Humble
  • Telescoping measuring rule
    Patent number: 4399616
    Abstract: A measuring rule consists of a plurality of sections which can be displaced telescopically relative to each other and have a first scale for outside measurement which begins at zero at the outer end of one end section. Said sections also have a second scale for inside measurement which begins at the outer end of one end section with a value equal to the length of the measuring rule when the sections are fully contracted.
    Type: Grant
    Filed: October 6, 1981
    Date of Patent: August 23, 1983
    Assignee: Olle Humble
    Inventor: Elis Jansson