Leroy A. Makelki

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Edmonton, CA

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Patents Grantslast 30 patents

Information Patent Grant
Sucker rod centralizer
- Patent number 9,303,466
- Issue date Apr 5, 2016
- Plainsman Mfg. Inc.
- Leroy A. Makelki
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Sucker Rod Centralizer
- Publication number 20120193089
- Publication date Aug 2, 2012
- PLAINSMAN MANUFACTURING INC.
- Leroy A. Makelki
- E21 - EARTH DRILLING MINING