The letter describes Vivian's attempts to secure a joint patent for the high pressure steam engine of 1802
- part of archive:
- Collection of letters from Andrew Vivian to Richard Trevithick
- Vivian, Andrew
The letter provides a report of Vivian's visit to London where the patent is to be sealed on Wednesday 24 March 1802. Vivian visited the Rolls Chappel Office, Crane Court and the Patents Office. He spent time with Mr Nicholson in Soho Square making alterations to the rough copy of the specification.