# Relationship history for MSHA mine 3401176

Current hierarchy: **Mc Cuistion Ted → Limestone Product Inc → Limestone Product 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:** Limestone Material Company → Limestone Product Incorporated; 1979-01-01 to 1980-08-31; source msha-controller-operator-history
- **controller_controls_mine:** Rudd Jack L → Limestone Product Incorporated; 1979-01-01 to 1980-08-31; source msha-controller-operator-history
- **controller_controls_operator:** Rudd Jack L → Limestone Material Company; 1979-01-01 to 1980-08-31; source msha-controller-operator-history
- **operator_operates_mine:** Limestone Product Inc → Limestone Product Incorporated; 1980-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Mc Cuistion Ted → Limestone Product Incorporated; 1980-09-01 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Mc Cuistion Ted → Limestone Product Inc; 1980-09-01 to current/open; source msha-controller-operator-history