# Relationship history for MSHA mine 4502242

Current hierarchy: **Ranniger Ed → Palouse Asphalt Paving Company Inc → Palouse Crusher Plant**

- 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:** Carbon Carl Jr → Palouse Crusher Plant; 1950-01-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Carl Carbon Inc → Palouse Crusher Plant; 1983-02-01 to 1985-03-31; source msha-controller-operator-history
- **controller_controls_operator:** Carbon Carl Jr → Carl Carbon Inc; 1983-02-01 to 1985-03-31; source msha-controller-operator-history
- **operator_operates_mine:** Palouse Asphalt Paving Company Inc → Palouse Crusher Plant; 1985-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Ranniger Ed → Palouse Crusher Plant; 1985-04-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Ranniger Ed → Palouse Asphalt Paving Company Inc; 1985-04-01 to current/open; source msha-controller-operator-history