# Relationship history for MSHA mine 2401475

Current hierarchy: **Bryan L  Mikesell → Mikesell Sales & Service Inc → Mikesell Mobile Crusher**

- 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:** Mikesell Sales & Service Inc → Mikesell Mobile Crusher; 1979-01-01 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Kenneth W  Mikesell → Mikesell Mobile Crusher; 1979-01-01 to 2014-10-28; source msha-controller-operator-history
- **controller_controls_operator:** Kenneth W  Mikesell → Mikesell Sales & Service Inc; 1979-01-01 to 2014-10-28; source msha-controller-operator-history
- **controller_controls_mine:** Bryan L  Mikesell → Mikesell Mobile Crusher; 2014-10-29 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Bryan L  Mikesell → Mikesell Sales & Service Inc; 2014-10-29 to current/open; source msha-controller-operator-history