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| Number | Title | Issue Date |
| 7325316 | Device and method for inserting elements into the ground, mechanism for this device and system using this device A device for inserting elements into the ground in order to carry out works includes a positioning mechanism. The positioning mechanism includes an upper panel which is fixed to the chassis of a vehicle for transporting the insertion device, a movable plate to which... | 02/05/2008 |
| 5617639 | Railroad maintenance vehicle reference system transducer A transducer for use in a railroad track maintenance chord reference system for measuring the vertical and horizontal position of the rails of the track. The transducer is carried by a carriage riding on the rails and provides a signal indicative of the o... | 04/08/1997 |
| 5596203 | System and method for detecting the relative position and motions between a rail vehicle and track A detecting system for rail vehicles having at least one sprung rigid structure, for instance a bogie frame, and two axles, comprises photosensor position-detecting means applied to the structure and adapted to detect typical geometrical characteristics o... | 01/21/1997 |
| 4056886 | Dressmaker's aid with rotating platform A base structure supports a relatively rotatable and vertically adjustable platform upon which the wearer of a garment to be fitted stands, the base structure further supporting a relatively fixed stool for the dressmaker's use in effecting hemline markin... | 11/08/1977 |
