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Apparatus for Obtaining a Vacuum.
Patent for a new and improved vacuum. This design utilizes a liquid pump, plates, tubes and valves to make "about as perfect a vacuum . . . as can be obtained by an ordinary pump" (lines 53-55).
Date:
July 27, 1880
Creator:
Ward, Lyman Henry
Object Type:
Patent
System:
The Portal to Texas History
[D. M. O'Connor Financial Ledger: 1887-1891]
Ledger of Dennis Martin O'Connor, detailing his accounts, including balances due to individuals and a record of his debts paid.
Date:
1887-12-17/1891-12-15
Creator:
O'Connor, Dennis M.
Object Type:
Book
System:
The Portal to Texas History
Map of Refugio County
Cadastral map of Refugio County, Texas in the Gulf Coast region. Some notes and features are marked in color. Scale [ca. 1:133,334] (4000 varas per inch).
Date:
1885
Creator:
Schmidt, V.
Object Type:
Map
System:
The Portal to Texas History
Refugio County
Cadastral map of Refugio County, Texas in the Gulf Coast region. Some notes and features are marked in color. Scale [ca. 1:133,334] (4000 varas per inch).
Date:
1883
Creator:
unknown
Object Type:
Map
System:
The Portal to Texas History