FIG. 1 is a front perspective view of an oxygen sensor adaptor showing a first embodiment of our new ornamental design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a bottom view thereof;
FIG. 6 is a right side view of FIG. 2 with the left side view thereof being a mirror image thereof;
FIG. 7 is reverse perspective view thereof;
FIG. 8 is a reduced scale perspective view thereof, shown in a sample environmental setting;
FIG. 9 is a cross sectional view taken along section 9-9 of FIG. 2;
FIG. 10 is a cross sectional view taken along section 10-10 of FIG. 2;
FIG. 11 is a front perspective view of an oxygen sensor adaptor showing a second embodiment of our new ornamental design;
FIG. 12 is a front view thereof;
FIG. 13 is a rear view thereof;
FIG. 14 is a top view thereof;
FIG. 15 is a bottom view thereof;
FIG. 16 is a right side view of FIG. 12 with the left side view thereof being a mirror image thereof; and,
FIG. 17 is reverse perspective view thereof.
The broken lines shown in the figures of the oxygen sensor adaptor show sample environment or structure and do not form a part of the claimed design.