Quotables
"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
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| Number | Title | Issue Date |
| 6727815 | Fire alarm system A fire alarm system may comprise a control center, a wired communication pathway connected to the control center, and a relay station having a receiver and a signal evaluation circuit connected to the communication pathway. First decentralized alarm boxes may be wir... | 04/27/2004 |
| 5061919 | Computer graphics dynamic control system For a raster-scanned, video display apparatus, individual pixel display data is stored in a double image frame buffer. A valid count buffer then holds a count for each pixel. Current valid counts are stored, as at times of image buffer updating which upda... | 10/29/1991 |
| 4267549 | Pull station protector A fire alarm pull station protector is provided comprising a wall mounted framing member and a cover adapted to abuttingly engage the framing member. The cover is pivotally connected to the framing member by hinge means having a laterally displacement piv... | 05/12/1981 |
| 4087803 | Fire box alarm A local alarm apparatus mounted on a conventional alarm box to provide an audible and visual alarm that a fire alarm is being sent so that passersby will take notice .of the sender in the event a false alarm is sent. The audible and visual alarm is connec... | 05/02/1978 |
