"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."
U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.
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| Number | Title | Issue Date |
| 7000731 | Multi-material cover for a ladder rail end A cover for an end of a ladder rail includes a shell and a tread. The shell comprises at least one material, whereas the tread comprises at least one other material. The shell is sized to engage the ladder rail. The tread is engaged with the shell at least partially... | 02/21/2006 |
| 6951265 | Foldable stairway ladder A foldable stairway ladder for use in accessing items includes a structure that can be conveniently folded to reduce the amount of space taken up by ladder when not in use. The ladder consists of a stairway section connected to a platform, in turn rotatably connecte... | 10/04/2005 |
| 5366051 | Hollow plastic ladder The present invention pertains to a ladder. The ladder includes a first plastic side rail, at least a portion of which is hollow. The ladder also includes a second plastic side rail, at least a portion of which is hollow. The second side rail is in parall... | 11/22/1994 |
| 5131495 | Hollow plastic ladder The present invention pertains to a plastic ladder. The plastic ladder includes a front section which has a first hollow side rail and a second hollow side rail disposed essentially in parallel with the first side rail. The first and second side rails are... | 07/21/1992 |
| 5069444 | Device for simulating climbing A device for simulating climbing includes a pair of side frames each of which has a pair of upper legs into which a pair of lower legs are telescoped. A horizontal platform is connected to the upper legs whereby the effective height of the platform may be... | 12/03/1991 |
| 4600080 | Three-legged stepladder A tripod stepladder in which a bracing means includes a sleeve or collar that slides up and down the third or rear leg as the ladder is folded and unfolded. A pail shelf is pivotally attached to the third leg and locks the ladder in the open position, the... | 07/15/1986 |
| 4332308 | Safety stepladders Stepladders having flat tread steps have a step extender fixed along the rear edge of the first step from the top of the ladder to increase the width of the step bearing surface and improve ladder safety. The extender comprises a flat tread portion and a ... | 06/01/1982 |
| 4187928 | Stepladders Stepladders made of extruded aluminum channels include special forms of front section bracing and brackets for a bucket rack that enables the ladder to be fabricated with a minimum of fasteners and parts while providing improved strength, rigidity and saf... | 02/12/1980 |
| 4155422 | Combination step, stair well and extension ladders Combination step, stair well and extension ladders are characterized by a single bracket member by which a bucket rack and the top rear section are pivoted to the front step section, the bucket rack is supported by telescoping channel members, spring-bias... | 05/22/1979 |
| 4079814 | Stepladders Stepladders are made of extruded aluminum metal parts including special bracket members for the rear prop section and the bucket rack that mitigate torsional twist. Cross bracings for the rear prop section and bracings of the front section are structured ... | 03/21/1978 |