# Relationship history for MSHA mine 1701031

Current hierarchy: **Harry E  Patterson; Troy D  Patterson → Patterson Trucking LLC → Finley Portable Screen**

- Valid-time bounds: inclusive, date granularity
- Null end: open-ended in the upstream history row; not independent proof of present control
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **operator_operates_mine:** Patterson Trucking LLC → Finley Portable Screen; 2019-11-06 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Troy D  Patterson et al → Finley Portable Screen; 2019-11-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Troy D  Patterson et al → Patterson Trucking LLC; 2019-11-06 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Harry E  Patterson et al → Patterson Trucking LLC; 2019-11-06 to current/open; source msha-controller-operator-history