An automatic bed maker which uses the expansion of inflatable bladder to straighten, align, and tuck-in bed-cover assembly.
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| Number | Title | Issue Date |
| 5816893 | Method and device for sharpening tools, particularly dental hand instruments A method and apparatus for sharpening tools, particularly hand instruments used in dental care. The apparatus includes a fixed base (19) and a rotary plate (14) fitted thereon, a grinding stone (10) pivoted on an axle (11), and a motor (20) for rotating t... | 10/06/1998 |