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The ornamental design for a pressure gauge, as shown and described. |
FIG. 1 is a front perspective view of a pressure gauge showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a left side elevational view thereof, the right side being a mirror image thereto.
Bljumshtein, Zigmund G., Bychkin, Lev A.
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