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Math teaching board for special education students

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اقرأ أكثر حفظ في قائمتي
  • Publication Date:
    February 08, 1994
  • معلومة اضافية
    • Patent Number:
      D344,097
    • Appl. No:
      07/673,492
    • Application Filed:
      March 22, 1991
    • Inventors:
      Green, Freddie W. (Fraziers Bottom, WV)
    • Claim:
      The ornamental design for a math teaching board for special education students, as shown.
    • Current U.S. Class:
      D19/62
    • Patent References Cited:
      D163085 May 1951 Bishop
      D170563 October 1953 Zipkin
      2472439 June 1949 Rogers
      2892267 June 1959 Harvey
    • Primary Examiner:
      Burke, Wallace R.
    • Assistant Examiner:
      Brown, Melody
    • Attorney, Agent or Firm:
      Bender, S. Michael
    • الرقم المعرف:
      edspgr.D0344097