FIELD: civil engineering. SUBSTANCE: device has screws, pins, lower and upper door cover plates, door cover plates, and cover plates onto frame binding for additional fastening the lock to the door, and providing additional coupling between the door and frame binding in crosswise and lengthwise directions. Lock cover plate and cover plates on frame binding are installed on the side of hinges and rigidly secured by pins to wall. EFFECT: enhanced reliability. 4 dwg
| Title | Year | Author | Number |
|---|---|---|---|
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|
RU2721145C1 |
| DOOR HASP LOCK | 0 |
|
SU1227782A1 |
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RU2318969C1 |
