Harry W. Girdley

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Louisville, KY, US

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Patents Grantslast 30 patents

Information Patent Grant
Quarter-turn plug valve having adjustable bonnet and tapered raised...
- Patent number 4,834,340
- Issue date May 30, 1989
- Henry Vogt Machine Co.
- Harry W. Girdley
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Raised hardface overlay valve seat
- Patent number 4,776,566
- Issue date Oct 11, 1988
- Henry Vogt Machine Co.
- Harry W. Girdley
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...