The ornamental design for a mainbody of fluid emitting device, as shown and described.
FIG. 1 is a front, right side, top perspective view of a main body of fluid emitting device showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a reference perspective view thereof, showing a state in which this article is used.
The broken lines in FIG. 2 are for purposes of illustrating portions of the main body of fluid emitting device, the evenly spaced broken lines in FIG. 8 depicts environmental subject matter, and the dash-dot-dash lines in FIG. 8 depict a symbolic break; none of the broken lines form part of the claimed design.