Collection
Serial/Series Title
2000 Census County Subdivision Block Map
52
7.5 Minute Series (Topographic)
46
2010 Census County Block Map
45
2010 Census P.L. 94-171 County Block Map
45
1990 Census County Block Map
42
2000 Census County Block Map
42
Digital US Topo Maps: 7.5 Minute Series (Topographic)
38
30 Minute Series
23
CAPCOG Connections
18
Digital Raster Graphic Topographic Maps: 7.5 Minute Series (Topographic)
18
20 More
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437 Matching Results
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Results:
433 - 437 of
437
Well-Casing Grapple
Patent for a well-casing grapple, allowing a positive grip when lowering casing or pipe within a well, or withdrawing it therefrom, without the danger of slipping or accident.
Date:
April 30, 1918
Creator:
Artzt, Erich C.
Object Type:
Patent
System:
The Portal to Texas History
Music-Leaf Turner
Patent for a music leaf turner to turn the pages of sheet music for pianists. Illustrations included.
Date:
April 2, 1912
Creator:
Meier, Ernst
Object Type:
Patent
System:
The Portal to Texas History
Improvement in Plows.
Patent for an improvement in plows which will allow for adjustments in width.
Date:
June 26, 1876
Creator:
Traweek, Robert C.
Object Type:
Patent
System:
The Portal to Texas History
Plaiting Machine.
Patent for a new and improved plaiting machine. This design "is to make the plaits with less labor and in less time than could be done by the plaiting-machines heretofore known or used" (lines 9-11).
Date:
August 1, 1882
Creator:
Shane, Oscar G.
Object Type:
Patent
System:
The Portal to Texas History
Cultivator.
Patent for a new and improved cultivator. This design "is to provide a cultivator adapted to receive a plow for breaking new land, a hopper for seeding purposes, and a leveler for breaking lumps and evening the furrows, a further object being to provide a light, durable, and economical cultivator for general farm use" (lines 16-22).
Date:
May 4, 1886
Creator:
Lloyd, William D.
Object Type:
Patent
System:
The Portal to Texas History