U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

"Rail travel at high speeds is not possible because passengers, unable to breathe, would die of asphyxia."

Dionysius Lardner, Professor of Natural Philosophy and Astronomy at University College, London ; 1830

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Inventor: David Julian Ford

Address: Stapleford, EN
No. of patents: 1
Last patent issue date: 08/17/1976

Number	Title	Issue Date
3975582	Fluid level sensing probe A probe for use in a fluid level sensing system has an electrode and an insulating body located between the ends of the electrode. The insulating body is in the form of a hollow, tubular shell and includes electrode carrying parts ad resilient fluid conta...	08/17/1976