| DIV. | Registration No. | CONTENTS | Issued by |
|---|---|---|---|
| Utility | NO. 0232990 | Air hoist with double hook type | KIPO |
| Utility | NO. 0264998 | Over load protector for air hoist | KIPO |
| Utility | NO. 0296790 | Over load protector for air winch | KIPO |
| Utility | NO. 0424741 | Explosion proof push button for electric hoist | KIPO |
| Utility | NO. 0371142 | Safety device of air balancing hoist | KIPO |
| Utility | NO. 0316703 | Over load protecting device for hoist | KIPO |
| Utility | NO. 0371064 | Over load protecting device for double drum type hoist | KIPO |
| Utility | NO. 0355194 | Air balancer of having wing arm | KIPO |
| Utility | NO. 0355193 | Safety system of air balancer | KIPO |
| Utility | NO. 0354656 | 4Points control switch of air hoist | KIPO |
| Utility | NO. 0378411 | Air orbital sander | KIPO |
| Patent | NO. 0402110 | Safety device for air balancing hoist | KIPO |
| Patent | NO. 0506682 | Over load protector for lifting device | KIPO |
| Patent | NO. 0480309 | Brake system for air balancing hoist | KIPO |
| Patent | NO. 10-0693379 | Explosion proof switch for electric hoist | KIPO |
| Patent | NO. 10-0793683 | Overshoot protecting switch with emergency stop | KIPO |
| Patent | NO. 10-0600997 | O.L.P for double drum type lifting device | KIPO |
| Patent | NO. 10-0613431 | Double brake system hoist | KIPO |
| Patent | NO. 10-0713836 | Air balancing hoist 1 | KIPO |
| Patent | NO. 10-0713837 | Air balancing hoist 2 | KIPO |
| Patent | NO. 10-1087045 | Diagnosis kit for hoist & crane | KIPO |
| Patent | NO. 10-1200517 | Underground electric junction box | KIPO |
| Patent | NO. 10-1288902 | Brake system for hoist trolley | KIPO |
| Patent | NO. 10-0644322 | Control device for air balancing hoist | KIPO |
| Patent | NO. 10-0600998 | Safety device for air balancing hoist | KIPO |
| Patent | NO. 10-0655113 | Double arm air balancer incorporated with safety device | KIPO |
| Patent | US 6,695,292 B2 | Safety device for air balancing hoist | USPTO |
| Patent | US 7,097,156 B2 | Safety device for air balancing hoist | USPTO |
Technology
introduction
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