ELECTROPHOTOGRAPHIC COPYING MACHINES [ ; AND EQUIPMENT FOR RECORDING X-RAY IMAGES-NAMELY, PROCESSORS FOR ELECTROSTATICALLY CHARGING XERORADIOGRAPHIC PLATES AND CONDITIONERS FOR PRODUCING POSITIVE OR NEGATIVE PRINTS ]
ELECTROPHOTOGRAPHIC COPYING MACHINES [ ; AND EQUIPMENT FOR RECORDING X-RAY IMAGES-NAMELY, PROCESSORS FOR ELECTROSTATICALLY CHARGING XERORADIOGRAPHIC PLATES AND CONDITIONERS FOR PRODUCING POSITIVE OR NEGATIVE PRINTS ]
ELECTROPHOTOGRAPHIC COPYING MACHINES [ ; AND EQUIPMENT FOR RECORDING X...