On SGI machines, call your local SGI sales representative or, if you
  are in the United States, call 1-800-800-7441 to order.

  NeTpower provides Open Inventor for Windows NT for both Intel and
  MIPS Windows NT platforms. For more information pricing and
  availability of Open nventor for NT, call NeTpower Sales and Customer
  Service at: 800-801-0900, or send email to info@netpower.com.

  Portable Graphics provides (or will soon provide) Open Inventor for
  the following platforms:

    * HP Series 700 workstations with Freedom Series
    * IBM RS/6000 workstations (AIX v3.2.5 and 4.x)
    * Sun SPARCstations (Solaris 2.3 & 2.4)
    * Windows NT (Intel platform)
    * Windows NT (PowerPC platform)
    * DEC AlphaStation/Digital UNIX
    * DEC AlphaStation/Windows NT
    * Linux
    * Sun SPARCstations with Freedom Series
    * OS/2 Warp (PowerPC and Intel platforms)
    * Windows 95 (PowerPC and Intel platforms)
    * MESA
    * PowerMac

  Portable Graphics also supplies:

    * IRIS Inventor for HP workstations
    * IRIS Inventor for Sun workstations

  For product availability and pricing, please contact Portable
  Graphics at:

    Portable Graphics
    "An Evans & Sutherland Company"
    3006 Longhorn Blvd., Suite 105
    Austin, TX 78758
    (512) 719-8000
    (512) 832-0752 (fax)

  Template Graphics Software provides (or will soon provide) Open
  Inventor on the following platforms:

    * Sun Solaris (SPARC and X86)
    * IBM AIX
    * Windows NT 3.5 (Intel, Alpha, MIPS, PowerPC)
    * Windows 95
    * HP-UX
    * Apple PowerMac
    * OS/2
    * Digital UNIX

  For additional information on TGS graphics software visit their web
  page or send email to info@tgs.com. Template Graphics Software may
  also be reached at:

    Template Graphics Software
    9920 Pacific Heights Blvd. #200
    San Diego, CA 92121
    
    Robert J. Weideman, V.P. Marketing
    (619)457-5359 x229
    (619)452-2547 (fax)
    robert@tgs.com