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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 |
| 6741010 | Rotor disc assembly having rotor rim with alternate magnets and laminated pole pieces A rotor disc (14), for use in an electrical machine (10), has at least one circumferential rotor rim (16) mounted thereon. The rotor rim (16) comprises at least one row of alternate magnets (20) and laminated pole pieces (18... | 05/25/2004 |
| 6434927 | Thrust reverser A thrust reverser for a gas turbine engine (10) comprises cascade structures (20,22) mounted in an engine cowl (12). The cascades (20,22) comprise a plurality of air deflecting vanes (24) arranged in fixed space relationship. At least one of the cascades ... | 08/20/2002 |
| 6251317 | Method for manufacturing a ceramic composite material The present method of manufacturing a ceramic composite material, composed of matrix and reinforcing materials and an intermediate weak interfice material, creates a composite material particuarly intended for use at temperatures above 1400° C. and in an... | 06/26/2001 |
| 6134001 | Fluid diagnostic technique A non-obstructive fluid diagnostic technique is described which enables the measurement of different parameters in a fluid. The diagnostic technique includes the steps of focusing a laser (10) in a fluid volume (14) to generate a laser induced breakdown s... | 10/17/2000 |
