Folding ruler accessory
Full circle protractor with detachable adjustable leg assembly f
Guideline and layout ruler for calligraphers
Household tile cutting gauge
Illuminated drafting aid
Instant angle gauge
Layout tool for laying out perpendicular lines
Layout tool for laying out perpendicular lines
Length measuring device
Level and angle attachment for a carpenter's folding ruler
Level angle gauge
Level device
Locating mechanism
Magnetic cropper
Marking and measuring instrument
Marking and measuring tool
Measurement method and apparatus
Measuring and shifting square
Measuring device
Measuring instrument