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A kissing shield comprised of a thin, flexible membrane and a frame or holder.
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| Number | Title | Issue Date |
| 3999860 | Apparatus for textile color analysis In a textile color analyzer, a sample of textile is supported on the pad of an elevator mechanism that holds the sample against an instrument head. The head has an opaque housing provided with a chamber having an opening therein. A glass plate is mounted ... | 12/28/1976 |
| 3994602 | Optical reflectance gauge and method therefor An optical reflectance gauge which serves as a chlorination sensor for paper pulp in which a spectrum of the bulk of the material is obtained by use of displaced windows in the pulp pipe. One window has a radiation source associated with it and the other ... | 11/30/1976 |
| 3984189 | Method and apparatus for detecting defects in a surface regardless of surface finish A method and apparatus for detecting a flaw, color shading, or the like on the surface of a running object and for producing an electrical signal in response thereto by optically scanning such surface, characterized in that there is provided not only a ph... | 10/05/1976 |
| 3953739 | Method and apparatus for the continuous monitoring and control of cell size in a foam structure A method and apparatus are provided to continuously monitor and measure the average size of individual foam cells contained in a foam structure, such as polystyrene foam for example, as it is being fabricated. Such an arrangement permits the prompt adjust... | 04/27/1976 |
