Scale balancing device in drawing machine
Scale balancing device in universal parallel ruler device
Scale balancing device in universal parallel ruler device
Scale balancing device in universal parallel ruler device
Scale balancing device in universal parallel ruler device
Scale balancing device in universal parallel ruler device
Scaling parallel bar
Seam line marker
Self-locking-and-measuring ruler for computer-printout forms
Students multi-function protractor
T-square
Template for driver's dailey log book
Tool guide and contour sander for use therewith
Universal digital converter for drafting machines
Universal parallel ruler for three-dimensional drawing
Universal parallel ruler for three-dimensional drawing
Universal parallel ruler including scale setting device
Universal parallel ruler with converted display of displacement
Universal parallel ruler with converted display of displacement
Windowed indexed calibrated T-square and precision-lined draftin