# Relationship history for MSHA mine 3304696

Current hierarchy: **Daniel R  Hawbaker → Glenn O Hawbaker → Metso  LT106 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: 2026-10-13T11:19:05.459773+00:00

## Valid-time edges

- **controller_controls_mine:** Daniel R  Hawbaker  et al → Metso  LT106 Jaw; 1983-02-01 to current/open; source msha-controller-operator-history
- **operator_operates_mine:** Glenn O Hawbaker → Metso  LT106 Jaw; 2013-05-22 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Daniel R  Hawbaker  et al → Glenn O Hawbaker; 2013-05-22 to current/open; source msha-controller-operator-history