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"Everyone acquainted with the subject will recognize it as a conspicuous failure."
Henry Morton, president of the Stevens Institute of Technology ; Said in 1880 about the light bulb
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| Number | Title | Issue Date |
| 4297587 | Absolute DC system for a laser inspection system A laser inspection system is provided having an absolute closed loop dc system in which the power gain is automatically stabilized. In order to stabilize the power gain of the system and provide a closed loop absolute reference dc level, a sample of the r... | 10/27/1981 |
| 4289964 | Radiation inspection system for a material making apparatus and method using a beta ray gauge The beta ray gauge is augmented with a radiation inspection system for automatically improving products formed into a continuous web such as non-woven paper, non-woven textiles, plastics, etc. For example, the basis weight of a continuous web of paper is ... | 09/15/1981 |
| 4260899 | Wide web laser scanner flaw detection method and apparatus A wide web laser scanner flaw detection method and apparatus are provided for rapid and accurate inspection of wide web materials. A plurality of laser sources are scanned by a plurality of aligned synchronized rotary scanners which repetitively scan the ... | 04/07/1981 |
