Resource Type

Improvement in Ventilators and Protectors for Roofs. (open access)

Improvement in Ventilators and Protectors for Roofs.

Patent for improvements in ventilators and protectors for roofs relating to "a ventilating combing or ridging for roofs of houses" (lines-15-16) including illustrations and instructions.
Date: October 24, 1876
Creator: Brock, Ernst Moritz
System: The Portal to Texas History