| 
 |   The ornamental design for a "pressure checking apparatus for swimming pool", as shown and described.   | |||||||||||||||||
FIG. 1 is a front elevational view of a pressure checking apparatus for swimming pool, showing my new design;
FIG. 2 is a rear elevational view thereof.
FIG. 3 is a right side elevation view thereof;
FIG. 4 is a left side elevation view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
| Patent | Priority | Assignee | Title | 
| Patent | Priority | Assignee | Title | 
| 4527429, | Dec 21 1983 | Aladdin Equipment Company | Pressure indicator | 
| 5201212, | Feb 13 1991 | TANKNOLOGY INC | Line leak detector and method | 
| 5653191, | Mar 01 1994 | Pressure indicator | |
| D254781, | Sep 16 1977 | Pressure gauge | |
| D353113, | Nov 17 1992 | UNILAB HOLDINGS LIMITED | Pressure gauge | 
| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc | 
| Date | Maintenance Fee Events | 
| Date | Maintenance Schedule |