Resource Type

Carbureter Attachment. (open access)

Carbureter Attachment.

Patent for a carbureter attachment.
Date: March 19, 1918
Creator: McDonald, James A. & Harris, James H.
System: The Portal to Texas History
Ledger with Visible Index. (open access)

Ledger with Visible Index.

Patent for a ledger with a visible index of numbers and names with tabs to allow accounts to be looked up easily.
Date: April 19, 1910
Creator: Kellner, Eugene
System: The Portal to Texas History
Refrigerator (open access)

Refrigerator

Patent for a refrigerator. Illustrations included.
Date: July 19, 1910
Creator: Conroy, Eliza D.
System: The Portal to Texas History