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| Number | Title | Issue Date |
| 4026216 | Arming fuze for artillery shell A fuze for an artillery shell to be spun about an axis generally parallel to the direction in which it is fired comprises a housing formed with a central axially extending sleeve and with a chamber surrounding the sleeve. A pin is axially slidable in the ... | 05/31/1977 |
| 4016476 | Booster circuits An input line carrying a square-wave voltage is connected through a capacitor to the drain and via an inverter to the gate of a MOSFET acting as a diode, the relative magnitudes of the drain and gate pulses being so chosen that the FET conducts during alt... | 04/05/1977 |
| 4006342 | Control apparatus for determining usage time A control apparatus for measuring usage time including an information carrier in the form of a token having magnetizable regions; the latter store information consisting of individual magnetic signals upon insertion of a coin corresponding to the time the... | 02/01/1977 |
