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| Description | March 17, 1885 - William F. Cosgrove patents automatic stop plug for gas and oil pipes. |
| Date | Sun, March 17, 2013 |
| Repeat Type | Yearly
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| Priority | 5-Medium |
| Access | Public |
| Created by | DEFAULT ADMINISTRATOR |
| Updated | Fri, December 7, 2012 2:06am GMT |