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  2. Leybold GmbH - Wikipedia

    en.wikipedia.org/wiki/Leybold_GmbH

    In 1994, Degussa sold Leybold to the Swiss Oerlikon Bührle Group, which combined Leybold with the Balzers AG, which was already in their possession, to form the Balzers and Leybold Group. The merger of these companies resulted in the world's largest vacuum and surface technology company with around 6 500 employees, generating sales of DEM 1.8 ...

  3. 1-800-FREE-411 - Wikipedia

    en.wikipedia.org/wiki/1-800-FREE-411

    Callers dial 1-800 (888 or 866)-FREE411 [373-3411] from any phone in the United States to use the toll-free service. Sponsors cover part of the service cost by playing advertising messages during the call. Callers always hear an ad at the beginning of the call, and then another after they have made their request.

  4. Edwards Vacuum - Wikipedia

    en.wikipedia.org/wiki/Edwards_Vacuum

    [14] [15] [1] [16] Manufacturing is predominantly handled by subsidiary businesses in the Czech Republic, South Korea, USA and China. Edwards' global research and development facilities remain in the UK. [4] Major customers in 2012 included Samsung, Hynix, Agilent and LG. [4] Edwards two stage rotary vane vacuum pump

  5. INFICON - Wikipedia

    en.wikipedia.org/wiki/INFICON

    In January 1976, Inficon was acquired by Leybold-Heraeus GmbH a vacuum technology company. Due to this acquisition, Inficon became known as Inficon Leybold-Heraeus. [8] [9] In 1987, Leybold-Heraeus GmbH, the parent company of Inficon, was purchased by Degussa AG, and the name was changed to Leybold AG. At this point, Inficon Leybold-Heraeus ...

  6. Rotary vane pump - Wikipedia

    en.wikipedia.org/wiki/Rotary_vane_pump

    An eccentric rotary vane pump Another eccentric rotary-vane pump design. Note that modern pumps have an area contact between rotor and stator (and not a line contact). 1. pump housing 2. rotor 3. vanes 4. spring. A rotary vane pump is a type of positive-displacement pump that consists of vanes mounted to a rotor that rotates inside a cavity. In ...

  7. Toll-free telephone numbers in the North American Numbering ...

    en.wikipedia.org/wiki/Toll-free_telephone...

    Several other prefixes, including 800-484, 800-703, 800-744, and 800-904 are reserved by the FCC. NPA-911 is forbidden as 9-1-1 is an emergency telephone number . (This is less restrictive than the rules prohibiting all three-digit N-1-1 codes as exchanges in all geographic area codes.)

  8. Learn more info about AOL 24x7 Live Support - AOL Help

    help.aol.com/articles/aol-24x7-live-support-faqs

    Our live experts are here to help you over the phone 24x7, or via chat from 8AM-1AM EST, 7 days a week. Manage or cancel AOL 24x7 Live Support If you signed up for a free trial or purchased for a monthly or annual fee, visit My Account to manage or cancel your subscription.

  9. Toll-free telephone number - Wikipedia

    en.wikipedia.org/wiki/Toll-free_telephone_number

    A Universal International Freephone Number (UIFN) is a worldwide toll-free "800 number" issued by the International Telecommunication Union. Like the 800 area code issued for the North American Numbering Plan in the United States and Canada and 0800 numbers in many other countries, the call is free for the caller while the receiver pays the ...