Search Results       Your search for [subject]Inventions for national progress -- Congresses returned 1 record.           Proceedings of the 6th annual inventors week; theme: "Inventions for national progress" (Imbensyon para sa Pambansang Kaunlaran) 9-15 April 1972. Quezon City, Philippines: Philippine Inventors Commission, 1972. Subject: Annual inventors week -- 1972; Inventions for national progress -- Congresses.          Add to Book Cart Relevance: 27.46%