FIG. 1 is an enlarged front elevational view of a terminal block showing the first embodiment of our new design;
FIG. 2 is an enlarged rear elevational view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is a perspective view thereof;
FIG. 8 is another perspective view thereof;
FIG. 9 is a front elevational view of a terminal block showing the second embodiment of our new design;
FIG. 10 is a rear elevational view thereof;
FIG. 11 is a left side view thereof;
FIG. 12 is a right side view thereof;
FIG. 13 is a top plan view thereof;
FIG. 14 is a bottom plan view thereof;
FIG. 15 is a perspective view thereof;
FIG. 16 is another perspective view thereof;
FIG. 17 is a front elevational view of a terminal block showing the third embodiment of our new design;
FIG. 18 is a rear elevational view thereof;
FIG. 19 is an enlarged left side view thereof;
FIG. 20 is an enlarged right side view thereof;
FIG. 21 is a top plan view thereof;
FIG. 22 is a bottom plan view thereof;
FIG. 23 is a perspective view thereof; and,
FIG. 24 is another perspective view thereof.
The broken lines in the drawings depict portions of the terminal block that form no part of the claimed design.