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US 465,218 (adjustable rheostat, with Frank Sprague)

Catalog Data

Collection Creator:
Pratt, Charles Richardson, 1860-1935  Search this
Container:
Box 5, Folder 11
Type:
Archival materials
Date:
1891
Collection Restrictions:
Collection is open for research but is stored off-site and special arrangements must be made to work with it. Contact the Archives Center for information at archivescenter@si.edu or 202-633-3270.
Collection Rights:
Collection items available for reproduction, but the Archives Center makes no guarantees concerning copyright restrictions. Other intellectual property rights may apply. Archives Center cost-recovery and use fees may apply when requesting reproductions.
Collection Citation:
Charles Richardson Pratt Papers, 1860-1935, Archives Center, National Museum of American History.
See more items in:
Charles Richardson Pratt Papers
Charles Richardson Pratt Papers / Series 5: Inventions
Archival Repository:
Archives Center, National Museum of American History
GUID:
https://n2t.net/ark:/65665/ep8588d281b-7761-4a6e-a2e1-6d33c4eb19a2
EDAN-URL:
ead_component:sova-nmah-ac-0958-ref106