US D410438 S
FIG. 1 a perspective view of a heat retaining tube for use in a semiconductor wafer heat processing apparatus.
FIG. 2 a front elevational view thereof, the rear elevational view being a mirror image of the front view.
FIG. 3 a top plan view thereof.
FIG. 4 a bottom plan view thereof.
FIG. 5 a right side view thereof.
FIG. 6 a left side view thereof.
FIG. 7 a cross sectional view thereof taken along lineVII--VIl in FIG. 3; and,
FIG. 8 a cross sectional view thereof taken along line VIII--VIII in FIG. 2.