The ornamental design for a laboratoryinstrumenthousing, as shown and described.
FIG. 1 is a top front perspective view of a laboratory instrument housing showing my new design.
FIG. 2 is a bottom rear perspective view thereof.
FIG. 3 is a left side elevational view thereof.
FIG. 4 is a front elevational view thereof.
FIG. 5 is a rear elevational view thereof.
FIG. 6 is a right side elevational view thereof.
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The dash-dot-dash lines represent the boundaries of the claim and form no part of the claimed design. The evenly broken lines illustrate portions of the laboratory instrument housing that form no part of the claimed design.