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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7901994 | Methods of manufacturing group III nitride semiconductor devices with silicon nitride layers Methods of fabricating transistor in which a first Group III nitride layer is formed on a substrate in a reactor, and a second Group III nitride layer is formed on the first Group III nitride layer. An insulating layer such as, for example, a silicon nitride layer i... | 03/08/2011 |
| 7826465 | Methods, systems and computer program products for dynamic communication data routing by a multi-network remote communication terminal Methods, systems and computer program products of dynamic communication data routing by a multi-network remote communication terminal across a plurality of networks are provided. The multi-network remote communication terminal is delivered to a locality to receive c... | 11/02/2010 |
| 6244844 | Fluid displacement apparatus with improved helical rotor structure A fluid displacement apparatus includes a housing defining a chamber therein having a first port and a second port. First and second helical rotors with opposing pitches are meshed within the chamber, in fluid communication with the first and second ports... | 06/12/2001 |
