Abdominal belts containing built-in speakers for purposes of transmitting music/sounds/educational material to a fetus and built-in pockets in which to carry audio transmitters; [ Automated digital controls for commercial and industrial food service equipment; ] Diagnostic apparatus for testing food; Food safety monitoring devices, namely, Nitrate Tester; [ Host bus adapters; Housings for printed circuit boards; ] Printed circuit boards; Printed circuit boards (PCBs); Public address (PA) and ...