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Francisco Quisumbing was a Filipino botanist who invented Quink ink in 1931 while studying in the Philippines and US, gaining degrees from the University of the Philippines and University of Chicago, but was unable to organize the Philippine Ink Corporation after WWII due to government intervention. Roberto del Rosario was a Filipino inventor known for developing the first commercial karaoke system called the Sing Along System in 1975, allowing people to sing along to music without the vocal tracks, which b

Author

Princess Dimayacyac

Language

EN