The ornamental design for a hook for hangingplastic vent pipes, and shown and described.
FIG. 1 is a side elevational view of a hook for hanging plastic vent pipes
showing my new design, an opposite view being a mirror image thereof;
The respective top and bottom views of FIG. 1 are plain and unornamented;
FIG. 2 is a side elevational view of a hook for hanging plastic vent pipes
showing a second embodiment of my new design, an opposite view being a
mirror image thereof;
The respective top and bottom views of FIG. 2 are plain and unornamented;
and,
FIG. 3 is a view similar to FIG. 1 with dotted lines to indicate the
environment in which this hook is used, said dotted lines showing a
building component to which the hook is attached and a vent pipe supported
by a resilient cord which is secured to said hook, said dotted line
showings being for illustrative purposes only and form no part of the
claimed design.