GB Patent: GB-181,804,226
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| Certain improvements on steam engines
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Patentees:
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| Barnabas Langdon (exact or similar names) - New York, NY |
| John Munro (exact or similar names) - Finsbury Square, London, England |
| Manufacturer: |
| Not known to have been produced |
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Patent Dates:
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| Granted: |
Feb. 12, 1818 |
Espacenet patent
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Jeff Joslin
Vintage Machinery entry for Barnabas Langdon
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Description: |
| The patent was granted to John Munfo "in consequence of a communication made to him by Barnabus Langden (sic), of New York, one of the United States of America". This may be the British equivalent of USA patent 2,743X but we cannot find a copy of the patent specification or drawings. |
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