Line drawing instrument
Linear three-dimensional gaging and form measuring machine
Longhand writing guide
Magnetic devices, apparatus for use in connection with dry...
Magnetic eraser dust collector
Magnetic visual display
Manipulator for creating a multiplicity of varied line designs
Marker board
Marker board
Marking device
Marking device
Marking gauge
Mathematical ruler
Measuring and drawing instrument
Memorandum device with tethered tool
Metal worker's 90 bend layout ruler
Method and apparatus for a computer-controlled,...
Method and apparatus for erasing the ink-carrying layer from...
Method and apparatus for generating aspherical surfaces of...
Method and apparatus for substantially lifting erasable...