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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 |
| 4619177 | Musical instrument pneumatic actuator A musical instrument pneumatic actuator uses valve seats and a vacuum tube which are integral with one of two plastic main body pieces. An anti-warp brace and curved recessed portion are respectively used to minimize warpage and wear on the bellows. A bev... | 10/28/1986 |
