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			 The ornamental design for a heating pad for artificial kidneys, as shown and described.  | 
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FIG. 1 is a front elevational view of a heating pad for artificial kidneys showing new design;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
| Patent | Priority | Assignee | Title | 
| D365640, | Jun 13 1994 | Heating pad | |
| D731666, | May 15 2012 | Contoured electrical foot heating pad | |
| D979776, | Aug 31 2021 | AZUROUS, INC | Heating pad | 
| Patent | Priority | Assignee | Title | 
| 4061897, | Jan 23 1976 | Heating pad | |
| 4512830, | Oct 26 1981 | Electrical heating cap | |
| D294971, | Jul 24 1985 | Portable heating pad | 
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