The ornamental design for a snowbrush with icescraper and dual grips, as shown and described.
FIG. 1 is an isometric view of a snow brush with an ice scraper and dual grips;
FIG. 2 is a right side elevational view thereof;
FIG. 3 is a rear sectional view thereof;
FIG. 4 is a front sectional view thereof;
FIG. 5 is a top view plan thereof; and,
FIG. 6 is a bottom view thereof.
The broken line showing of a snow brush with an ice scraper and dual grips is included for the purpose of illustrating portions of the article and forms no part of the claimed design.