# Relationship history for MSHA mine 4703937

Current hierarchy: **Paul  Luppino → Angelo Luppino, Inc → Crusher #2 40-42 Jaw**

- 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:** Angelo  Luppino → Crusher #2 40-42 Jaw; 1994-09-01 to 2017-05-11; source msha-controller-operator-history
- **controller_controls_mine:** Paul  Luppino → Crusher #2 40-42 Jaw; 2017-05-12 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Angelo Luppino, Inc → Crusher #2 40-42 Jaw; 2023-02-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Paul  Luppino → Angelo Luppino, Inc; 2023-02-21 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Angelo  Luppino → Angelo Luppino, Inc; 2023-02-21 to 2017-05-11; source msha-controller-operator-history