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| Number | Title | Issue Date |
| 4112723 | Hydrostatic extrusion apparatus A hydrostatic extrusion process and an apparatus therefor includes a mandrel and a stem which are movable independently of each other, and a seal block which is utilized for increasing the pressure of the pressure medium for performance of the extrusion o... | 09/12/1978 |
| 4100631 | Box-spring assembly This invention consists of a low cost box-spring assembly for use on a conventional bed frame under the mattress to provide comfort and additional resiliency as weight is placed upon the mattress.... | 07/18/1978 |
