TY - GEN T1 - Selecting foreign countries for patent coverage / AU - Helfgott, Samson, VL - 1986 Vol 68 No 2 pages 83-88 ID - 4025 KW - Patents. KW - Trademarks. KW - PATENTS : TREATMENT OF PATENTS FROM A GIVEN COUNTRY IN FOREIGN COUNTRIES KW - Direitos de autor KW - PATENTS : STATISTICS AND ECONOMICS TI - Selecting foreign countries for patent coverage / ER -