Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 7139374 | System and method for gathering information related to a geographical location of a callee in a public switched telephone network In a telecommunication system having at least two communicants (i.e., a caller and a callee), a system and method are presented for collecting information associated with the geographical location of either of the communicants. In one embodiment, the approach entail... | 11/21/2006 |
| 7127488 | System and method for gathering information related to a geographical location of a caller in an internet-based communication system In a telecommunication system having at least two communicants (i.e., a caller and a callee), a system and method are presented for collecting information associated with the geographical location of either of the communicants from a server. In one embodiment, the a... | 10/24/2006 |
| 7085358 | Visual caller identification A visual caller identification system and method are provided. A caller identification device of a called party's telephone, whether integrated with the telephone or stand-alone, includes a series of colored lights for visually alerting the called party to an incomi... | 08/01/2006 |
| 6970546 | Intelligent remote caller ID An intelligent remote caller identification system is provided that typically includes a central office, a service control point, and an internet call routing system. The central office typically triggers a query responsive to receiving a call request. The service c... | 11/29/2005 |
| D512041 | Cell phone base station interface for LAN phones | 11/29/2005 |
| D494953 | Mobile phone caller identification display | 08/24/2004 |
