The bottom of the battery is flat and devoid of surface ornamentation.
The bottom of the battery is flat and devoid of surface ornamentation.
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| Number | Date | Country | |
|---|---|---|---|
| Parent | 11187440 | Jul 2005 | US |
| Child | 12466900 | US |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 14949013 | Nov 2015 | US |
| Child | 29555097 | US | |
| Parent | 12466900 | May 2009 | US |
| Child | 14949013 | US |