The ornamental design for a protectivecover for a rotatable turret assembly and objectives of an invertedmicroscope, as shown and described.
FIG. 1 is a top perspective view of a protective cover for a rotatable
turret assembly and objectives of an inverted microscope, showing my new
design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a side view of the protective cover taken in the direction
indicated by line 3--3 of FIG. 1; and
FIG. 4 is a side view thereof taken in the direction of line 4--4 of FIG. 1
.