# Relationship history for MSHA mine 4605748

Current hierarchy: **Garbart Paul L → Garbart Brothers Inc → Clifton Mills Strip #1**

- 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

- **operator_operates_mine:** Garbart Brothers Inc → Clifton Mills Strip #1; 1978-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Garbart Paul L → Clifton Mills Strip #1; 1978-03-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Garbart Paul L → Garbart Brothers Inc; 1978-03-01 to current/open; source msha-controller-operator-history