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| Number | Title | Issue Date |
| 6035288 | Interactive computer-implemented system and method for negotiating sale of goods and/or services A computer-implemented method and system for negotiating the purchase of goods and/or services by customers utilizes a simulated human merchant having predefined behavioral attributes. An algorithm representing behavioral attributes of a simulated human m... | 03/07/2000 |
| 5027044 | Load state decision apparatus for servomotor A load state decision apparatus of a servomotor where a load current value of a servomotor during operation is sampled and compared with a prescribed value and then the load state is decided based on the result, a motor current value is detected by adding... | 06/25/1991 |