Patent Drawings
by Mark A. Nye
Issue No. 265 – May 1995
No research article this month. Instead, there are two patent drawings showing items from the ball shape portion of the 3400 line. As witnessed by the filing dates, this line was brought out during the 1930s.
by Mark A. Nye
Issue No. 265 – May 1995
No research article this month. Instead, there are two patent drawings showing items from the ball shape portion of the 3400 line. As witnessed by the filing dates, this line was brought out during the 1930s.
Item Details
Type: Crystal Ball Article
Tags: [No tags]
