| 1. | A new locking device for ventilation and power supply 一种新型的风电闭锁装置 |
| 2. | Study on new type air gate blocking device 新型气动式风门闭锁装置的研究 |
| 3. | Latch kits of hooks used for hand - operated hoisting appliances 手动起重设备用吊钩闭锁装置 |
| 4. | Burglary - resistant electric locking mechanisms 防盗电动闭锁装置 |
| 5. | Seat belt buckles in motor vehicles 汽车安全带闭锁装置 |
| 6. | Hardware design of computer key and lock in electric close lock device 电气闭锁装置中的电脑钥匙及锁的硬件设计 |
| 7. | Development and application of new type air door automatic closing equipment 新型风门自动闭锁装置的研制与应用 |
| 8. | Research on a new kind of microcomputer based anti - misoperation lockout device 关于一种新型微机防误闭锁装置的研究 |
| 9. | Locking devices for swop bodies and inland containers ; minimum requirements 交换体和陆用集装箱用闭锁装置.最低要求 |
| 10. | Clamp locking device 夹闭锁装置 |