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| Number | Title | Issue Date |
| 7278216 | Archery bow sight A bow sight including a mechanism that moves a sight element, while maintaining the alignment of an associated sight indicia with a substantially linear axis, by way of a simple adjustment of the mechanism. The adjustment mechanism can include a substantially curvil... | 10/09/2007 |
| 7225548 | System and method for aligning multiple sighting devices A system of independently oriented sighting devices includes a first sighting device (120) and a second sighting device (110). Upon aligning a line of sight of the first sighting device (12) with a target object (130), the first sighting ... | 06/05/2007 |
| 5239760 | Archery sight An archery sight for bows having a mounting bracket to be affixed a riser of a bow. The mounting bracket supports an adjustment bracket, which in turns supports the sight mechanism. The adjustment bracket provides for gross adjustment of the sight mechani... | 08/31/1993 |
| 4707926 | Automatic sextant A sextant for indicating the angular separation between two objects, including two members interconnected at a pivot point, means for adjusting the angle between the members to be indicative of the angular separation between the objects, the means for adj... | 11/24/1987 |
| 4685217 | Archery To attain accuracy in the sport of archery, reference points are used. These reference points are constant and do not vary. The Inline sight gives the archer an added point of reference that increases accuracy in the horizontal dimension. This invention i... | 08/11/1987 |
| 4593474 | Survey vehicle A mobile vehicle capable of stabilized observation of topographic features for land surveying is provided. The vehicle is adapted to convert to a stabilized observation platform by the use of stabilizing means, such as swing and lift apparatus mounted on ... | 06/10/1986 |
| 4466189 | Angle measuring device An angle measuring device includes a mechanism rotatable to define an angle to be measured and a rotating scanner for producing a first number of pulses corresponding to the angle to be measured. The first number of pulses is frequency multiplied to a sec... | 08/21/1984 |
| 4033045 | Portable surveying gyrocompass apparatus A miniature automatically self-aligning azimuth reference employs a floated pendulous gyrocompass device for the rapid determination of geographic north as required for surveying purposes. Fast alignment with north from an initially misaligned condition i... | 07/05/1977 |
| 3968570 | Electronic sextant An improved sextant which provides a very accurate angular measurement of the position of a celestial body relative to the horizon. The sextant is a typical prior art sextant having a horizon glass and an index mirror, and wherein the sextant is sighted b... | 07/13/1976 |
| 3935645 | Apparatus for indicating relative azimuth An arrangement for indicating a relative azimuth between two objects remote from each other, such as a control station and a mobile unit remotely controlled by the station, on which are respectively mounted first and second synchronous transmitters for ge... | 02/03/1976 |
