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  • Alexander Melville Clark Letters Patent, 1874-1875
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Alexander Melville Clark Letters Patent, 1874-1875

July 23, 2014
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Inventor Name

Clark, Alexander Melville

Repository

Massachusetts Historical Society
1154 Boylston Street
Boston, MA 02215-3695
617-536-1608
http://www.masshist.org/library_collections/

Physical Description

1 box

Summary

Collection contains British letters patent issued to patent agent Alexander Melville Clark for an invention for improvements in automatic chemical telegraphs in 1874. Also included is an 1875 indenture assigning the letters patent to Wiliam Edward Sawyer of Washington, DC.

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  • Telegraph, telephone, and telecommunications (Relevance: 34%)
  • Ventilation (Relevance: 7%)

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