Respiratory gas flow manifold
FIG. 1 is a perspective view of a respiratory gas flow manifold showing our new design; 
     FIG. 2 is a top plan view thereof; 
     FIG. 3 is a side elevational view thereof; 
     FIG. 4 is a front elevational view thereof; 
     FIG. 5 is a rear elevational view thereof; 
     FIG. 6 is a bottom plan view thereof; and 
     FIG. 7 is a cross-sectional view taken on line 6--6 of FIG. 7.