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A push-button telephone is a telephone that has buttons or keys for dialing a telephone number, in contrast to a rotary dial used in earlier telephones.. Western Electric experimented as early as 1941 with methods of using mechanically activated reeds to produce two tones for each of the ten digits and by the late 1940s such technology was field-tested in a No. 5 Crossbar switching system in ...
An owner's manual (also called an instruction manual or a user guide) is an instructional book or booklet that is supplied with almost all technologically advanced consumer products such as vehicles, home appliances and computer peripherals. Information contained in the owner's manual typically includes:
British company LiftEye provides a virtual window technology to turn common elevator into panoramic. It creates 3d video panorama using live feed from cameras placed vertically along the facade and synchronizes it with cab movement. The video is projected on a wall-sized screens making it look like the walls are made of glass. [96]
A PBX user must be careful to order the correct type of trunk line from the local phone company and correctly install the telephone system at the PBX end – so that they match. Line equipment in most 20th-century central-office switches had to be specially rewired to create a ground-start line.
The top floor of the test tower was a conference space for the company to have meetings. Below the conference space was an experimental floor where elevator components get tested along with elevator controllers. The test tower still stands today but there are plans to demolish the tower along with the complex to build apartments. [4]
"Faulty command" is correct for Viking 1. The Slashdotter's indignation over "revisionist history" looks to me like confusion between 1 and 2. gparker 06:55, 30 September 2006 (UTC) Agreed, Gparker. Either way, wikipedia internally should agree, so I synched up the reasons for failure with the reasons in the Viking 1 and Viking 2 articles. The ...
In 2005, Schindler acquired the Hontz Elevator Company [1] after a brief legal battle with the German authorities over the registration of the company name. [citation needed] The court held that the Hontz Elevator Company had been established in the 19th century by Karl Hontz (then under the title Die Hontz Aufzugfirma) according to a folder of documents that had previously surfaced in the ...
Viking program Viking 1 was the first of two spacecraft , along with Viking 2 , each consisting of an orbiter and a lander, sent to Mars as part of NASA 's Viking program . [ 2 ] The lander touched down on Mars on July 20, 1976, the first successful Mars lander in history.
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