25931 records — Page 602 of 2594
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Level:
file
Collection ID:
Accession 95-116
Repository:
Smithsonian Institution Archives
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Level:
file
Collection ID:
Accession 95-116
Repository:
Smithsonian Institution Archives
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Level:
file
Collection ID:
Accession 95-116
Repository:
Smithsonian Institution Archives
[ ]
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Level:
file
Collection ID:
Accession 95-116
Repository:
Smithsonian Institution Archives
[ ]
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Level:
file
Collection ID:
Accession 95-116
Repository:
Smithsonian Institution Archives
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Level:
file
Collection ID:
Accession 95-116
Repository:
Smithsonian Institution Archives
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Dates:
1911 - 1914
Level:
file
Collection ID:
NMAH.AC.0958
Repository:
Archives Center, National Museum of American History

Primarily correspondence about obtaining foreign patents for many of Pratt's inventions. Also includes correspondence from Marks and Clerk Consulting Engineers and Chartered Patent Agents in London.

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Dates:
1932 - 1933
Level:
file
Collection ID:
NMAH.AC.0959
Repository:
Archives Center, National Museum of American History
25931 records — Page 602 of 2594