Resource Type
Counties
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Improvement in Pipe and Rod Clamps.
Patent for "improvements in devices for supporting pipes and rods in position" (lines 10-11) including instructions and illustrations.
Date:
December 29, 1914
Creator:
Adams, Benjamin F.
System:
The Portal to Texas History
Grain-Drill Attachment.
Patent for combining a plow and a grain drill into one device, to reduce the number of times the soil needs to be turned per planting.
Date:
August 29, 1915
Creator:
McAdams, William J.
System:
The Portal to Texas History