The ornamental design for pipe vise, as shown and described.
FIG. 1 is a perspective view of the pipe vise of this invention.
FIG. 2 is a left side elevation view of the design for the pipe vise shown in FIG. 1.
FIG. 3 is a right side elevation view of the design for the pipe vise shown in FIG. 1.
FIG. 4 is a bottom plan view of the design for the pipe vise shown in FIG. 1.
FIG. 5 is a rear elevation view of the design for the pipe vise shown in FIG. 1; and,
FIG. 6 is a front elevation view of the design for the pipe vise shown in FIG. 1.
Portions or features of the design for the pipe vise not shown in the drawings form no part of the claimed design. The broken lines in the drawings form no part of the claimed design.