Period

4 results for: elihu

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Elihu Thomson's electric welding process, powered by a Thomson/Houston dynamo
ARP23A71_033

Elihu Thomson's electric welding process, powered ...

President Theodore Roosevelt at the "Congressional Vaudeville"
ARP18A15_015

President Theodore Roosevelt at the "Congressional...

Cross-section of Elihu Whitney's (1765-1825) saw-gin for cleaning cotton
ARP07095_390001506

Cross-section of Elihu Whitney's (1765-1825) saw-g...

Elihu Whitney's (1765-1825) saw-gin for cleaning cotton
ARP07095_390001507

Elihu Whitney's (1765-1825) saw-gin for cleaning c...