The ornamental design for a combined switchpanel and housing for a nightvisiondevice, as shown.
FIG. 1 is a top, front, right perspective view of a combined switch panel and housing for a night vision device showing my new design;
FIG. 2 is a right view thereof;
FIG. 3 is a left view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a back view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines in the drawings depict portions of the combined switch panel and housing for a night vision device and form no part of the claimed design.