"The abolishment of pain in surgery is a chimera. It is absurd to go on seeking it...knife and pain are two words in surgery that must forever be associated in the consciousness of the patient."
Dr. Alfred Velpeau, French surgeon ; 1839
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| Number | Title | Issue Date |
| 4218923 | System for monitoring the condition of a pipeline Apparatus for scanning the interior of pipelines. The apparatus comprises a pig having an elongated body, a bogie assembly adapted to maintain the body in the center of a pipeline, and a seal assembly extending radially from the body and adapted so that t... | 08/26/1980 |
| 4216614 | Technique for heating an agricultural area There is disclosed a system for heating the atmosphere adjacent a ground surface in an agricultural area as well as the process and apparatus for constructing the system. The system comprises an elongate heat distributing structure which extends through t... | 08/12/1980 |
| 4175263 | Technique for monitoring whether an individual is moving from a particular area A first pressure sensor is positioned to sense the weight of part of the patient's body in the normal position and a second pressure sensor is positioned for sensing the weight of part of a patient's body when a patient begins to leave the bed. The device... | 11/20/1979 |
| 4162635 | System for monitoring the condition of a pipeline Apparatus for scanning the interior of pipelines. The apparatus comprises a pig having an elongated body, a bogie assembly adapted to maintain the body in the center of a pipeline, and a seal assembly extending radially from the body and adapted so that t... | 07/31/1979 |