# Cornwall May Bushall — Patents explained on PatentBrief

Cornwall May Bushall has 1 landmark patent explained in plain English on PatentBrief.

- [A 1920s Design for a Suspended Monorail Transportation System](https://patentbrief.org/patent/us/1469997/iletin-insulin) — granted 1923
  A 1923 patent by May B. Cornwall describing a structural design for a suspended monorail train system intended for efficient passenger or cargo transport.

**Full profile:** https://patentbrief.org/inventor/cornwall-may-bushall

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_Source: PatentBrief — https://patentbrief.org. Plain-English explanations of US patents._