The ornamental design for a frenchdooroven, as shown and described.
FIG. 1 is a perspective view of the French door oven according to my new design;
FIG. 2 is a front view of the French door oven of FIG. 1;
FIG. 3 is a cross-sectional view taken at Line 3-3 of FIG. 2;
FIG. 4 is a left side view of the French door oven of FIG. 1, the right side view being a mirror image thereof;
FIG. 5 is a cross-sectional view taken at Line 5-5 of FIG. 4;
FIG. 6 is a top view of the French door oven of FIG. 1; and,
FIG. 7 is a cross-sectional view taken at Line 7-7 of FIG. 6.
The bottom view and the rear view form no part of the claimed design. Components shown in broken lines are for environment only and form no part of the claimed design.