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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 |
| 4095530 | Resilient railway drive connection An elastic drive coupling between an electrically powered hollow drive shaft and the drive wheel of a track operated vehicle such as for example an electric locomotive wherein an annular coupling plate is located adjacent to but spaced from the inner side... | 06/20/1978 |
