Portable cofferdam

Abstract

Claims

The ornamental design for a portable cofferdam, as shown and described.

Description

(1) FIG. 1 is a left perspective view of a portable cofferdam showing our new design;

(2) FIG. 2 is a right perspective view thereof;

(3) FIG. 3 is a rear view thereof;

(4) FIG. 4 is a front view thereof;

(5) FIG. 5 is a right view thereof;

(6) FIG. 6 is a left view thereof;

(7) FIG. 7 is a top view thereof; and,

(8) FIG. 8 is a bottom view thereof.

(9) The broken line portions of the drawings are included to show unclaimed subject matter and form no part of the claimed design.