143

A larger version of the 1916 patent 3 3/8

‖

tall.

Left pair: Bottles probably produced by Electro Chemical Engraving.

Right three: Although the bottle on the left is marked

―

Made by Etching Co. of America,

Chicago, Ill.,

‖

it is quite similar to the products by Electro Chemical. The three were

probably produced by Electro Chemical.

In addition to the two bottle cap remover patents, Jacobus is credited with a number of

other inventions including a frame, calendar stands, a memo pad holder, and name

plates. Most of them were assigned to Electro Chemical Engraving.

Thanks to Randy Carlson, Art Johnson, Larry Moter, and John Stanley for their assistance with

this story.