Multi-purpose hand tool
Multi-purpose T-square and level combination tool
Multifunctional measuring and layout tool
Multiple-purpose measuring instrument
Rotatable carpenter's level
Segmented, combination level and square having a rotating joint
Segmented, combination level and square having a rotating joint
Self holding leveling square
Siding leveling device
Slope level
Slope level
Spirit level
Spirit level
Spirit level
Spirit level
Spirit level
Structure and method for holding and protecting vials in levels
T-square apparatus
T-square attachment for carpenter's level
Tool for positioning of vinyl corner posts