Earth Green Korea(representative Youngsun Park,?www.earthgreen.co.kr) showed ?'Special guard for street trees' received Korean intellectual property office representative award?participating in '2011 Korea invention Patent Exhibition' at COEX, Seoul from December 1~4.

'Special guard for street trees' is made for smooth supply of air, water, nourishment,?and others needed to growth of trees. It's composed of environment friendly materials, and?assembly or separation is simple.

Meanwhile,'Korea invention Patent Exhibition' aimed at?supporting commercialization and new technology?excavation/award is hosted by Korea Invention Promotion Association, and it's historied exhibition started from 1982.

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