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Spring (open access)

Spring

Patent for a spring for footwear that helps facilitate foot movement such as walking, running, jumping, etc. Illustrations included.
Date: September 8, 1908
Creator: Backermann, Henry G.
System: The Portal to Texas History
Duplex Door-Check Holder and Buffer (open access)

Duplex Door-Check Holder and Buffer

Patent for door check holder for preventing doors from slamming and holding them in open position. Illustrations included.
Date: April 28, 1908
Creator: Kibbe, Isaac Pease
System: The Portal to Texas History