Air Horn Patent on Blackboard

Perfect for sports-lovers and fans of loud noises, these beautiful prints break down the inner workings of an air horn.This patent design is also available in Blueprint, Chalkboard, and Parchment styles. Choose from sizes that run from 5x7 inches all the way to 18x24 inches.

Download Large (11" x 17". PDF Format)
Download Medium (8.5" x 11". PDF Format)
Download Small (5" x 7". PDF Format)

Download Hi-Res Patent Design for $12.99 (18" x 24". JPG format)
Download Hi-Res Patent Design for $9.99 (16" x 20". JPG format)

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This patent design belongs to these categories: miscellaneous

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