Johannes Cornelius Bluming (6 February 1933 – 17 December 2018) was a Dutch martial artist, instructor and actor. Known as a pioneer in a variety of martial arts, Bluming held 9th dan in Judo, 10th dan in Kyokushinkai Karate and 10th dan in Hapkido. He was also the coach of two-time Olympic champion Willem Ruska.
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