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The design for a color comparator for testing swimming pools, as shown. |
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FIG. 1 is a front perspective of a color comparator for testing swimming pools, showing our new design,
FIG. 2 is a front elevation thereof;
FIG. 3 is a side elevation thereof;
FIG. 4 is a rear elevation thereof; and
FIG. 5 is a bottom plan view thereof.
Liebert, Martin, Biersch, Richard Allen
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Jun 15 1976 | , | (assignment on the face of the patent) | / | |||
| Apr 24 1991 | Telautograph Corporation | GPS POOL SUPPLY, INC A CORPORATION OF CA | ASSIGNMENT OF ASSIGNORS INTEREST | 005689 | /0319 | |
| Mar 20 1995 | GPS POOL SUPPLY, INC | BANK OF NOVA SCOTIA, THE | SECURITY INTEREST SEE DOCUMENT FOR DETAILS | 007417 | /0135 |
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