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Patent Inventor: Francis Leighton
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Fluid flow controller
Inventor: Leighton | Patent Number: 4736767
Safe high pressure instrument valve
Inventor: Leighton, et al. | Patent Number: 4623120
Safe high pressure instrument valve
Inventor: Leighton, et al. | Patent Number: 4519580
Fluid controller with diaphragm and piston
Inventor: Leighton | Patent Number: 4424738
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