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"Everyone acquainted with the subject will recognize it as a conspicuous failure."
Henry Morton, president of the Stevens Institute of Technology ; Said in 1880 about the light bulb
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| Number | Title | Issue Date |
| 6138921 | Mechanism for securing rails of railways on wooden sleepers A rail-to-wood sleeper fastening mechanism in railroads, consisted of a clamp having an upper and middle branch fixed to the lower face of a sleeper, and with a pair of lateral and hinged branches, constituting the clamp, going through the sleeper via chi... | 10/31/2000 |
| 5065940 | Tie plate rail fastening system A rail fastener includes a rail plate and a rigid stop for rail. The rail plate consists of two parts having a plane surfaces for supporting the rail and extended upward appendages bearing preferably inclined surfaces which cooperate with inclined surface... | 11/19/1991 |
| 4448349 | Rail sleepers with rail clamping devices There is disclosed a rail sleeper which when secured to rails affords rapid disengagement when necessary and is comprised of a metal bar of a U-shaped channel section. At two locations along the length of the bar portions of flanges of the sleeper are rem... | 05/15/1984 |
