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Pencil-Holder.

Description: Patent for a device to secure a pencil within the breast-pocket, including description and illustrations.
Date: October 22, 1901
Creator: Hogg, George, Sr.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Double-Acting Cylinder-Pump.

Description: Patent for improvements in double-acting cylinder-pumps by making “the cages and check-valves detachable from the piston-cylinder without removing or disturbing either the casing or piston-cylinder and can be replaced in the same manner.” (Lines 18-22) Illustration in included.
Date: April 22, 1902
Creator: Arnold, Henry B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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