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| Number | Title | Issue Date |
| 4410105 | Cable-driven rotor-piston dispensing apparatus and method of operating the same Apparatus and method for dispensing a gel containing seeds for planting. A container (11) has a piston (13) driven by a lead screw (14) for expressing the gel through outlet (12). A line (17) is wound around a control rotor (16) and a free end is secured ... | 10/18/1983 |
