Improvements in the main patent n. 435,824 for improvements in the process for the manufacture of caps and deodorants bacteridas handset microphones.

摘要

TAPA bactericide and DEODORIZER MICROPHONES MICROTELEFONOS.COMPRENDE ONE PIECE (1) discoid cancellous NYLON, which are impregnated with a composition of ESTIROSOL (quaternary ammonium salt), ETHYL ALCOHOL AND ESSENCE OF PART SPONGY LAVANDA.POSTERIORMENTE JOINS UP CARRIER SCREW TOP MICROPHONE.