US D619541 S1
The ornamental design for a switch block, as shown and described.
FIG. 1 is a perspective view of a switch block, showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left-side elevational view thereof; the right-side elevational view being a mirror image thereto;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design.
|1||http://www.lucasmfg.com/ applicant's website home page showing similar but not identical designs . . . not dated.|