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A portable partition for use in an automobile having a seat with a seat bench and a seat backrest.
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| Number | Title | Issue Date |
| 6224296 | Sliding double panel type trench shoring system A trench shoring system using panels as shoring walls to prevent possible collapse of natural ground walls of trenches in trenches such as for burying pipes underground, having a sliding panels type trench shoring system that offers increased safety durin... | 05/01/2001 |
