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Patent directory of Sri Lanka Details of inventions patented by Sri Lanka from 1980 upto December 31, 1992 and the list of Sri Lanka's patents granted during year 1993

Language: English Publication details: Colombo Sri Lanka inventors commission 1994Description: xxviii,105 pISBN:
  • 9559315005
Subject(s): DDC classification:
  • B0395 LDC
Item type: Legal Deposit
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