Pneumatic valve actuators

COMPUTER HARDWARE, NAMELY, MEMORY CARD READERS AND WRITERS; BLANK MEMORY CARDS; BLANK MAGNETIC OR OPTICALLY CODED PORTABLE NON-VOLATILE DATA STORAGE AND RETRIEVAL CARDS

electro-mechanical apparatus, namely, a computer controlled motor drive for producing relative movement between a material applicator and a base in the process of producing three-dimensional objects with a rapid prototyping machine

CONTROLLERS FOR AC LOADS; CONTROLLERS FOR DISCHARGE LAMPS; FILM EXPOSURE UNITS; ILLUMINATED MEASURING BOARDS AND TABLES, KNOWN AS LIGHT BOXES AND TABLES, FOR USE WITH PHOTOGRAPHIC FILM; CONTROLS AND PARTS FOR THE FOREGOING