Claims (1)
Claim 1 (Independent)
The ornamental design for a non-return valve, as shown and described.
Full Description
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FIG. 1 is a front perspective view of the non-return valve showing my new design.
FIG. 2 is a front view of the non-return valve.
FIG. 3 is a rear view of the non-return valve.
FIG. 4 is a left side view of the non-return valve.
FIG. 5 is a right side view of the non-return valve.
FIG. 6 is a top view of the non-return valve; and,
FIG. 7 is a bottom view of the non-return valve.
The broken lines shown in the drawings illustrate portions of the non-return valve that form no part of the claimed design.
Citations
This patent cites (7)
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- USD667930
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