This AT&T informational film describes in detail how step-by-step switches work, and demonstrates their real-time operation by calling a 5-digit phone number from another dial telephone.
Watch the official The Step by Step Switch 1951 trailer in HD below or find more The Step by Step Switch videos on Vidimovie.
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United States 03 July 1951
These some of the most viewed trailers for movies released in 1951:
03 January 1951
1830s, guerrillas in the hills resisting the French occupation. Meanwhile, their leader has a French officer and another guy chasing after his fiancé, and.
05 April 1951
A ruthless fashion designer steps on everyone in her way in order to reach the top of her profession.
29 July 1951
The Bowery Boys join the Navy to catch some crooks who are posing as sailors.
09 October 1951
Fong Yim-fun puts on a tour de force as an ill-fated woman, separated from her lover through an arranged marriage to the terminally ill and impotent son of a warlord.
10 April 1951
Stock-footage from Republic Pictures' earlier Zorro serials was served up once again in this 12 chapter cliffhanger, this time without the financially strapped studio having to credit Zorro creator Johnston McCulley or pay any royalties.
17 June 1951
Two men search the jungle for a woman who has been captured by a tribe of murderous gorillas. When they finally find her, they must fight off attacks by the gorillas, who are determined to keep her.
11 January 1951
Jonny Wilken is an ageing lion trainer in a circus. He is in love with his younger colleague Jutta Sarris.
30 March 1951
Jóska has become a Communist in the Csillag prison in Szeged. In the meantime, Gábor successfully talks people in Jóska's native village out of joining the German-led Hungarian army.
29 October 1951
Charles "Durango" Starrett and his pal Smiley Burnette go after smugglers. Our heroes travel incognito across the Mexican border to beard the leader of the gang in his den.
20 July 1951
A woman of great beauty is used by a man who only desires her body and falls on the path of self-destruction.
15 November 1951
After conning a potential buyer into believing that Queenie's herd is diseased, nasty would-be empire builder Duke Drake is confronted by the girl's new tough foreman Bill Foster.
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