# Relationship history for MSHA mine 4703483

Current hierarchy: **Kyle  Frank; Timothy  Frank → FRANK BROS., INC → LIPPMAN 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:** Donald E  Frank et al → LIPPMAN JAW; 1950-01-01 to 2015-09-14; source msha-controller-operator-history
- **operator_operates_mine:** FRANK BROS., INC → LIPPMAN JAW; 2006-10-12 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Donald E  Frank et al → FRANK BROS., INC; 2006-10-12 to 2015-09-14; source msha-controller-operator-history
- **controller_controls_mine:** Timothy  Frank et al → LIPPMAN JAW; 2015-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Timothy  Frank et al → FRANK BROS., INC; 2015-09-15 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Kyle  Frank et al → FRANK BROS., INC; 2015-09-15 to current/open; source msha-controller-operator-history