TY  - BOOK
TI  - 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
SN  - 9559315005
U1  - B0395 
CY  - Colombo
PB  - Sri Lanka inventors commission
KW  - BOOKS BOX 395
ER  -