vacuum gauges, namely gauge tubes and vacuum gauge controllers used in the measurement of vacuums

PORTABLE ELECTRIC BASEBOARD HEATERS

TUBES ENCLOSING HEATER ELEMENTS SURROUNDED BY A FLUID MEDIUM, IN WHICH VARIATIONS IN THE CONVECTION CURRENTS IN THE FLUID MEDIUM CHANGES THE OHMIC VALUE OF THE ELEMENTS

TUBING AND DUCTWORK FOR THE DISTRIBUTION OF AIR

Cooking oven for commercial and domestic use

Health care services