Drilldown: Patents

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Patents > Inventors : Bruce J. Penney or John Addis or Thomas S. Buzak & Company : Tektronix Inc or Tony Sprando or None & Grant date: 1989 & Cites : Patent GB 460562A or Patent US 2922074A or Patent US 3293473A or Patent US 3413513A or Patent US 3629731A or Patent US 3689752A or Patent US 3725792A or Patent US 4146844A or None & Links : 5A45 or Sampling or T7912 or None

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1985 (1) · 1988 (3)
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May 1989 (1) · September 1989 (1) · December 1989 (2)
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