Tilt-A-Whirl patent application drawing

Tilt-A-Whirl patent application drawing

Description

Figure 1 of Herbert Sellner’s “Patent Application for Amusement Device,” filed with the US Patent Office on April 24, 1926. Sellner Patent Application for Amusement Device, Sheet 1, filed April 24, 1926. United States Patent and Trademark Office. Public domain.

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