TY - GEN T1 - Other sources of innovation / AU - Bowler, John E., VL - 1977 Vol 12 No 4 pages 303-308 ID - 6714 KW - Patents. KW - PATENTS : PATENTABILITY : SCIENTIFIC AND TECHNICAL PROGRESS, RESEARCH AND DEVELOPMENT KW - PATENTS : SCIENTIFIC AND TECHNICAL PROGRESS TI - Other sources of innovation / ER -