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Razor-Strop Holder. (open access)

Razor-Strop Holder.

Patent for a new, less expensive razor strop holder with a reversible strop, including illustrations.
Date: October 23, 1917
Creator: Childress, Henry T.
System: The Portal to Texas History
Exhaust-Steam-Actuating Damper-Regulator. (open access)

Exhaust-Steam-Actuating Damper-Regulator.

Patent for exhaust-steam-actuating damper-regulator, including instructions and illustrations. This invention improves oil burning equipment for locomotives by "operating the dampers of the air inlet box to automatically close the dampers when the locomotive is standing and to open the dampers when the locomotive is running." (lines 12-16).
Date: July 10, 1917
Creator: Gilman, Benoist P.
System: The Portal to Texas History
Door Operating and Locking Means (open access)

Door Operating and Locking Means

Patent for improved locking means for sliding doors.
Date: January 9, 1917
Creator: Freeman, Richard J.
System: The Portal to Texas History