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The ornamental design for an underwater pool cleaning apparatus, as shown and described. |
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FIG. 1 is a perspective view of an underwater pool cleaning apparatus showing my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a left side elevational view, the right side being identical in appearance thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof; and,
FIG. 6 is a bottom plan view thereof.
The broken line showing of a suction base is for illustrative purposes only and forms no part of the claimed design.
Frentzel, Herman E., Maier, Robert W., Patterson, Charles J., Rief, Deiter, Gard, John
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| Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
| Sep 10 1986 | MAIER, ROBERT W | AQUANAUT, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 004618 | /0926 | |
| Sep 10 1986 | PATTERSON, CHARLES J | AQUANAUT, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 004618 | /0926 | |
| Sep 10 1986 | RIEF, DEITER | AQUANAUT, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 004618 | /0926 | |
| Sep 10 1986 | FRENTZEL, HERMAN E | AQUANAUT, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 004618 | /0926 | |
| Sep 10 1986 | GARD, JOHN | AQUANAUT, INC | ASSIGNMENT OF ASSIGNORS INTEREST | 004618 | /0927 | |
| Oct 02 1986 | Aquanaut, Inc. | (assignment on the face of the patent) | / | |||
| Jul 22 1994 | AQUANAUT, INC | H-TECH, INC | ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS | 007091 | /0373 |
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