Foreign Patents of James Powers

Description
American inventor James Powers received these six foreign patents between 1906 and 1921.
Location
Currently not on view
date made
1906-1921
patantee
Powers, James
Physical Description
paper (overall material)
Measurements
overall: 1.2 cm x 24 cm x 35 cm; 15/32 in x 9 7/16 in x 13 25/32 in
ID Number
1991.3180.06
nonaccession number
1991.3180
catalog number
1991.3180.06
Credit Line
Gift of Thor Dockweiler
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Tabulating Equipment
Data Source
National Museum of American History

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