6 Matching Results

Search Results

Lifting-Jack.

Description: Patent for a new and useful lifting jack, including instructions and illustrations.
Date: November 7, 1899
Creator: Luke, William
Partner: UNT Libraries Government Documents Department

Pipe-Making Machine.

Description: Patent for pipe making machines in which "concrete, clay or shale is formed into pipe by a combined feeding and molding mechanism" (lines 17-19).
Date: November 7, 1911
Creator: Reese, Walter A.
Partner: UNT Libraries Government Documents Department
Back to Top of Screen