# Relationship history for MSHA mine 1001772

Current hierarchy: **Karl H Kloepfer → Kloepfer Inc → Kloepfer PP No 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Fred P  Kloepfer → Kloepfer PP No 1; 1950-01-01 to 2023-06-27; source msha-controller-operator-history
- **operator_operates_mine:** Kloepfer Inc → Kloepfer PP No 1; 1987-03-01 to 2024-08-18; source msha-controller-operator-history
- **controller_controls_operator:** Fred P  Kloepfer → Kloepfer Inc; 1987-03-01 to 2023-06-27; source msha-controller-operator-history
- **controller_controls_mine:** Karl H Kloepfer → Kloepfer PP No 1; 2023-06-28 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Karl H Kloepfer → Kloepfer Inc; 2023-06-28 to 2024-08-18; source msha-controller-operator-history
- **operator_operates_mine:** Kloepfer Inc → Kloepfer PP No 1; 2024-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Karl H Kloepfer → Kloepfer PP No 1; 2024-08-19 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Karl H Kloepfer → Kloepfer Inc; 2024-08-19 to current/open; source msha-controller-operator-history