# Relationship history for MSHA mine 1301714

Current hierarchy: **Floyd A  Meeker → Harvey Products, Inc. → Harvey Products, Inc.**

- 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:** American Pelletizing Corp → Harvey Products, Inc.; 1950-01-01 to 1991-09-25; source msha-controller-operator-history
- **controller_controls_mine:** Martin Marietta Materials Inc et al → Harvey Products, Inc.; 1950-01-01 to 1991-09-25; source msha-controller-operator-history
- **controller_controls_operator:** Martin Marietta Materials Inc et al → American Pelletizing Corp; 1950-01-01 to 1991-09-25; source msha-controller-operator-history
- **operator_operates_mine:** Ampel Corporation → Harvey Products, Inc.; 1991-09-26 to 2002-11-25; source msha-controller-operator-history
- **controller_controls_mine:** Linwood Mining & Minerals  et al → Harvey Products, Inc.; 1991-09-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Linwood Mining & Minerals  et al → Ampel Corporation; 1991-09-26 to 2002-11-25; source msha-controller-operator-history
- **controller_controls_operator:** Kaser Development Inc et al → Ampel Corporation; 1991-09-26 to 2002-11-25; source msha-controller-operator-history
- **operator_operates_mine:** Harvey Products, Inc. → Harvey Products, Inc.; 2002-11-26 to current/open; source msha-controller-operator-history
- **controller_controls_mine:** Floyd A  Meeker → Harvey Products, Inc.; 2002-11-26 to current/open; source msha-controller-operator-history
- **controller_controls_operator:** Floyd A  Meeker → Harvey Products, Inc.; 2002-11-26 to current/open; source msha-controller-operator-history