# Relationship history for MSHA mine 3401180

Current hierarchy: **Davis Bob → Leeper Lake Inc → Leeper Lake Incorporated**

- 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:** Leroy Eaton Construction → Leeper Lake Incorporated; 1979-01-01 to 1984-06-19; source msha-controller-operator-history
- **controller_controls_mine:** Eaton Leroy → Leeper Lake Incorporated; 1979-01-01 to 1984-06-19; source msha-controller-operator-history
- **controller_controls_operator:** Eaton Leroy → Leroy Eaton Construction; 1979-01-01 to 1984-06-19; source msha-controller-operator-history
- **operator_operates_mine:** Leeper Lake Inc → Leeper Lake Incorporated; 1984-06-20 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Davis Bob → Leeper Lake Incorporated; 1984-06-20 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Davis Bob → Leeper Lake Inc; 1984-06-20 to current/open; source msha-controller-operator-history