TY  - GEN
AU  - Cheng, Yongshun,
ID  - 5880
KW  - Patents.
KW  - Trademarks.
KW  - PATENTS : INVENTORS OR INNOVATORS AND THEIR RIGHTS
KW  - PATENTS : PRIORITY RIGHTS
T1  - On several questions concerning priority right /
TI  - On several questions concerning priority right /
VL  - 1993 No 2 pages 29-33
ER  -