Quotables
"What can be more palpably absurd than the prospect held out of locomotives traveling twice as fast as stagecoaches?"
The Quarterly Review ; March edition, 1825
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| Number | Title | Issue Date |
| 3978461 | Three wire detection circuit A three wire circuit for supplying electrical power to active, power-consuming detection devices and communicating electrical signals providing supervisory information and fire alarm information to a control panel. Two wires supply electrical power the th... | 08/31/1976 |
| 3978476 | Circuit conduction test arrangement for emergency alarm systems Circuit conduction test arrangement for emergency alarm systems having a receiving panel for a group of several sections to be supervised and including common alarm means, and a plurality of relay panels installed in the respective sections; comprising in... | 08/31/1976 |
| 3958126 | Logic circuitry A burner control system has a field device and control logic for providing a control signal to change the state of the field device. A comparator that compares signals from field and the control logic comprises translation circuitry that is arranged to pr... | 05/18/1976 |
