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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.
Patent for a refrigerator with shelves and two layers of cooling liquids inside the walls.
Date:
April 26, 1910
Creator:
Henderson, Thomas
System:
The Portal to Texas History