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| US7832238 | 27 oct. 2007 | 16 nov. 2010 | The Eastern Company | Combination and key operated locks with indicators |
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| US8201423 | 17 sept. 2010 | 19 juin 2012 | The Eastern Company | Combination and key operated locks with indicators |
| USD495581 | 13 nov. 2003 | 7 sept. 2004 | Alloy Metal Manufactory Ltd. | Combined lock with storage device |
| USD497303 | 3 nov. 2003 | 19 oct. 2004 | ABUS August Bremicker Sohne KG | Padlock |
