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| Number | Title | Issue Date |
| 7337946 | Device for resolving interpersonal relationship issues A device for resolving interpersonal relationship issues comprising: (a) a plurality of text sheets comprised of flexible, transparent material; (b) a rigid front cover; and (c) a rigid back cover; wherein each text sheet comprises an opaque band bearing text on eit... | 03/04/2008 |
| 5691523 | Machinery shaft alignment calculator An alignment calculator circular slide rule device and associated method for determining shimming requirements for a drive unit to be coupled with a driven unit in angular alignment therewith. The circular slide rule device utilizes drive unit support sep... | 11/25/1997 |
| 5517007 | Three variable reference chart and calculator Disclosed is a manually operable calculator for determining a fourth value on the basis of three variables. According to one example, the calculator is used to determine the total storage available for a recording medium consisting of several units, such ... | 05/14/1996 |
| 5310996 | Method and apparatus for determining recording time available on a videotape cassette The amount of recording time remaining on a partially recorded videotape cassette (11) is measured by fixing the position of a body member (17, 117) relative to the hub (14) of a cassette reel, and moving a pointer (24, 120) to point to the outermost laye... | 05/10/1994 |
| 5286953 | Carburetor jet selection tool An apparatus for identifying the optimum jet for a carburetor which includes a general annular first member having a plurality of first graduations disposed about a peripheral portion thereof, a general arcuate second member having a plurality of second g... | 02/15/1994 |
| 5167072 | Directional plotter for underwater searches A directional plotter for underwater searches, land searches, land orienting, or the like includes a pair of first and second relatively rotatable discs with the first disc including first, second and third concentric sets of compass degrees in radially a... | 12/01/1992 |
| 4520668 | Manometric instrument for underwater diving A manometric instrument for use with air bottles of an underwater respirator for underwater diving, comprises a sealed casing having a transparent closure cover; a first fixed scale fixed within the casing for indicating pressure and having graduations ba... | 06/04/1985 |
| 4194111 | Tidal depth calculator There is disclosed a marine navigational calculator device of the slide rule type whereby tidal depths over bottom structures may be determined as a function of the time of the tide or time of calendar day and whereby the entire time span available to a m... | 03/18/1980 |
| 4074116 | Selector A device for selection of compressors, condensers, expansion valves, and evaporators for air conditioning or refrigeration systems.... | 02/14/1978 |
| 3992610 | Weight and balance calculator The disclosure embraces a manually operated weight and balance calculator for use with a slide card containing a graphic display of the weight-balance tolerance characteristics for a particular type of aircraft; the calculator includes a carrier channel f... | 11/16/1976 |
| 3984657 | Stock trend indicator A stock trend indicator and method of using is disclosed. The manipulable instrument is used with a standard stock chart to forecast an evaluation of future stock behavior.... | 10/05/1976 |
| 3958529 | Work-time indicator A circular clock face bearing time indicia equally spaced in a concentric relationship thereon providing a base to support and correlate time quantity indicators. A plurality of arcuate segmented indicators marginally disposed along the perimeter of the f... | 05/25/1976 |
| 3946207 | Time card computer The present invention relates to a time card computer that is adapted to compute or calculate the total time worked by a worker over a specified time period and in the process compensates or subtracts for interim time out periods. The time card computer o... | 03/23/1976 |
