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| Number | Title | Issue Date |
| 4750575 | Chest high beam scale A chest high balance beam scale including balance indication means on the head of the scale which is observable from above to allow the user to determine when the beam of the scale is in balance. The head portion of the scale is fabricated of molded plast... | 06/14/1988 |
| 4629018 | Electrical balance with acoustic feedback signal for manual dosing or mixing An electronic scale controlling a material feed generates a control signal as the material fed approaches a desired weight. An acoustic tone signal varying in accordance with the control signal and reaching a limiting value when the control signal signifi... | 12/16/1986 |
| 4218835 | Animal scale toy A toy balancing scale used to teach children the proper relationship between the number of objects and/or the value of numbers, has a base having an upstanding support and pivoted on the support is a horizontal balance bar. At each end of the balance bar ... | 08/26/1980 |
| 3960224 | Precision cut-off weighing apparatus A precision cut-off weighing apparatus having a balance type weighing device on which a desired weight is placed on one side and a bag to be filled with a fluid such as blood on the other. A magnet is mounted on the arm of the balance on which the bag is ... | 06/01/1976 |
