In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7267071 | Apparatuses and methods useful for centering watercraft Apparatuses and methods useful for helping to center watercraft—such as personal watercraft, ski boats, fishing boats, luxury boats, and the like—as they are docked (such as on trailers or watercraft-lifting systems), especially in rough waters and/or strong cro... | 09/11/2007 |
| 7090237 | Apparatus for pulling a trailer behind a boat trailer An apparatus for pulling a trailer behind a trailer is disclosed, and includes a mounting bracket assembly for mounting on the rear of the trailer, and a main trailing member mounted on the mounting bracket assembly in a manner such that the main trailing member is ... | 08/15/2006 |
| 6360166 | Apparatus and method for removing logs from a forestry site An apparatus and method for removing logs from a forestry site. The apparatus and method includes a primary mobile machine having means attached to a rearward portion thereof for holding a first end of a first log cluster. The apparatus and method also in... | 03/19/2002 |
| 5293949 | Chassis for endless track type vehicles A chassis for endless track-type vehicles has on both sides thereof pairs of support beams which extend parallel to each other and project horizontally from the chassis. Crawler track supports are mounted on the support beams. The crawler track supports a... | 03/15/1994 |
| 5249823 | Size variable cart A cart comprises a load carrying bed, a front wheel carriage, a rear wheel carriage and a handle. The bed telescopes longitudinally to allow for loads of different lengths which are positionable directly upon the bed. A pair of front side arms and a pair ... | 10/05/1993 |
| 5072800 | Support beam for a vehicle A support beam, for supporting and connecting a track-type vehicle on first and second roller frame assemblies, has first and second end portions connected to a respective track roller frame and a middle portion connected to the vehicle. The connections b... | 12/17/1991 |
| 5040825 | Combine header transport The present invention relates to a combine header transport which may be rapidly and easily adjusted to support a wide variety of kinds and shapes of headers for transport. The transport includes an inclined bracket having a slotted sloped surface. A rail... | 08/20/1991 |
| 4280712 | Trailers for hauling logs and the like and adapted for use in tandem Trailers for use in hauling logs and adapted for use in tandem have fore and aft bunks each of which has a pair of horizontal members that are connected by a central pivot to the trailer and have vertical stakes at their outer ends. An air operated piston... | 07/28/1981 |
| 4127071 | Railway car shipping support structure A railcar for shipping loose glass sheets includes moveable deck runners each having a moveable stanchion to support the sheets in a generally vertical position. The railcar is loaded and/or unloaded from one side. The glass sheets are protected from the ... | 11/28/1978 |