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 |
| 4580916 | Typing device for typing in several languages by combining sub-components of the characters The typing arrangement includes a character-bearing member of the "daisy wheel" type, the symbols of which can be printed at the point of printing either alone or in the form of combinations of successive strikes of certain symbols for constituting a font... | 04/08/1986 |