TY - BOOK TI - Patent directory of Sri Lanka SN - 9559315005 U1 - B0443 PY - 1994/// CY - Colombo PB - Sri Lanka Inventors Commission KW - BOOKS BOX 443 KW - INTERNATIONAL LAWS KW - INVENTORS N1 - details of inventions patented by Sri Lankans from 1980 upto December 31, 1992 and the list of Sri Lankan's patents granted during the year 1993 ER -