Auxiliary drafting instrument combination applicable to...
Base for cutting a circular plate with a gas burner
Batter board
Beam compass
Beam compass
Beam compass
Beam compass having changeable parts
Brick alignment pole
Cam driven curve tracking apparatus
Cam tracker with slidable cam follower
Carpenter's gauge
Carpenter's portable precision adjustable length cutting gauge
Carriage drawing machine
Chalk line device
Circle compass
Circle cutting system
Circle drawing and measuring device
Circle drawing kit apparatus
Circle drawing tool
Comb generators