The ornamental design for a bag having dual bottomcorner handles, as shown and described.
FIG. 1 is a front perspective view of a bag having dual bottom corner handles, showing our new design.
FIG. 2 is a front elevation view thereof.
FIG. 3 is a rear elevation view thereof.
FIG. 4 is a right or left side view thereof.
FIG. 5 is a top view thereof.
FIG. 6 is a bottom view thereof; and,
FIG. 7 is a detail view of the lower right corner of FIG. 1.
The rectangular broken line is included for the purpose of illustrating the detail of the lower corner of the bag and forms no part of the claimed design.