# Relationship history for MSHA mine 2700393

Current hierarchy: **Laurent  Rancourt → Laurent Rancourt → Brown Lenox S/N 9106KK**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-17T05:35:58.500035+00:00

## Valid-time edges

- **controller_controls_mine:** Laurent  Rancourt → Brown Lenox S/N 9106KK; 2000-07-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Laurent Rancourt → Brown Lenox S/N 9106KK; 2004-08-24 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Laurent  Rancourt → Laurent Rancourt; 2004-08-24 to current/open; source msha-controller-operator-history