Author

Publication

1993 - Patent Office of Bulgaria, Pub. House "Intellectual property-INSO", Sofia, Bulgaria

Language

English

Word Count

9,750 words, Guess

Page Count

39 pages

Identifiers

Classifications

  • DDC346.497704/86/02632
  • DDC344.9770648602632
  • LCCKJM1194.A31993 A7 1993

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