USA: Invention Patent No. 5,626,157 Germany: Utility Model No. 201 06 806.0 Netherlands: Patent No. 1017802 Russia: Invention Patent No. 22168 U.K.: GB2373796 96 China: Utility Model No. ZL01.2 08101.9 Japan: Utility Model No. 3082164 Taiwan: Invention Patent No. 125767 South Africa: Patent No. 2001/5947
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China: Utility Model No. ZL03260894.2 Taiwan: Invention Patent No. M241460
USA patent apply No: 101653.881 --- world-wide patent pending ---
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