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Self Containing Enclosure for Protection from Killer Bees
A self contained protective enclosure with an opening for entry and egress and a screen for ventilation and viewing.
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| Number | Title | Issue Date |
| 4062913 | Method of reinforcing concrete with fibres The invention relates to the reinforcement of material with fibres, whereby the fibres are orientated by means of electrical fields. In this way, the fibres can also be concentrated on places which are especially subjected to stress so that a considerably... | 12/13/1977 |
