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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 |
| 6374921 | Bi-fold implement frame A frame for a tillage implement includes a pair of opposing frame sections pivotally connected to a central kingpost for a folding movement between a transversely extending working position and a longitudinally extending transport position. The frame sect... | 04/23/2002 |
| 6082467 | Tool bar A tool bar comprising an elongated tongue having a forward end rotatably secured to the hitch of a tractor and having first and second horizontally disposed pivot pins secured to the rearward end thereof at the opposite sides thereof. The inner end of a f... | 07/04/2000 |
| 4269273 | Land surfacing apparatus Land surfacing apparatus, comprising an elongate blade and a towing structure which includes a tow connection portion forward of the blade and which is connected to the blade so that the blade can be towed with its longitudinal dimension transverse to the... | 05/26/1981 |
| 4083131 | Apparatus for regeneration of skiing courses A method for preparing and regenerating skiing courses wherein the snow is broken up, crumbled and deep-frozen in loosened condition and then a hard course covering is produced by fine levelling and smoothing. An apparatus for carrying out the method comprises... | 04/11/1978 |
