Actuator mechanism for a pencil carriage

Actuator mechanism for a plotter carriage

Adjustable mount for electrostatic printer stylus within cylindr

Apparatus for integrating an optical character generator in a pr

Apparatus for raising and lowering plotter marking devices

Apparatus for recording-pen interchange

Automatic lead feed apparatus in an automatic drafting apparatus

Automatic lead feeding apparatus of automatic drafting machine

Automatic lead supply apparatus for plotter

Automatic lead supplying device for a plotter

Automatic pen capping mechanism

Automatic pen type sensor for graphic recorder

Automatic pencil apparatus for an automated drafting system

Automatic pencil apparatus for an automated drafting system

Automatic pencil device for automatic drafting and writing machi

Belt-drive tensioning system which uses a pivoting member

Bi-directional pen changer

Cam operated cutter for roll-fed pen plotters

Carriage coupling device system for pen plotter

Control device for controlling the movements of two carriages of