| CPC E21B 47/09 (2013.01) [E21B 47/0228 (2020.05)] | 16 Claims |

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12. A method comprising:
placing a beacon into a cavity in an elongate housing through an open mouth;
covering the open mouth with a lid;
securing the lid to the elongate housing with a component; and
thereafter, placing a set screw into the lid such that placement of the set screw applies a force to the component.
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