UNT Libraries Government Documents Department - 4 Matching Results

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Patent for improvements to permutation locks by various means.

Date: September 27, 1870

Creator: Hall, William

Item Type: Patent

Patent for "an extensible fender adapted for large or small fire-places" (lines 8-10) including instructions and illustrations.

Date: February 27, 1872

Creator: Hall, William N.

Item Type: Patent

Patent for a new and useful thill coupling for "locking the thill-iron to the attached thill in a raised position" (line 8 -9).

Date: September 27, 1898

Creator: James, Will S.

Item Type: Patent

Patent for an improved and durable pig trough, one that stays clean and can be filled and eaten out of easily without wasting feed.

Date: April 27, 1897

Creator: Neill, George A.

Item Type: Patent