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Means for Holding Slats to Belts
Patent for an improved means of fastening slats to belts without the use of rivets or other fasteners.
Date:
May 29, 1920
Creator:
Cowan, Charles G.
System:
The Portal to Texas History
Pipe of Concrete and the Like
Patent for bell and spigot concrete pipes with a slip joint. This eliminates the potential for wear of the slipping joints, thus mimicking a metal pipe.
Date:
May 29, 1920
Creator:
Trammell, Jefferson D.
System:
The Portal to Texas History