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Chain Pipe-Wrench.
Patent for certain new and improvements in chain pipe wrenches, including instructions and illustrations.
Date:
December 26, 1899
Creator:
Bohner, Philip Henry
Object Type:
Patent
System:
The Portal to Texas History
Analyses of Coals in the United States with Descriptions of Mine and Field Samples Collected between July 1, 1904 and June 30, 1910: Part 1. -- Analyses
From Significance and value of Analyses of Coal: "The analyses published in this report cover samples of coal collected in many different parts of the country with unusual care by experiences men, in such manner as to make them representative of extensive beds of coal."
Date:
1913
Creator:
Lord, N. W.
Object Type:
Report
System:
The UNT Digital Library
Paper-Bag Machine.
Patent for improvements in the paper-bag machine (related to author's previous Patent No. 689,441, December 24, 1901) for the purpose of improving the mechanism for forming the primary fold of the bag-bottom in the bag-folding process, including descriptions of the machinery, parts, and illustrations.
Date:
May 5, 1903
Creator:
Tyson, Frank
Object Type:
Patent
System:
The Portal to Texas History