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You searched for: Format Patent Remove constraint Format: Patent Subject name ssim Jeffery, Joseph Arthur Remove constraint Subject name ssim: Jeffery, Joseph Arthur Topic Champion Spark Plug Co. Remove constraint Topic: Champion Spark Plug Co.
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1. Portion of a patent filing mounted on board, for a furnace for decorating ceramic ware

Description:
Portion of a patent filing mounted on board, for a furnace for decorating ceramic ware, invented by J.A. Jeffery and filed April 18, 1921. Depicted is a numbered diagram. Dated Sept. 25, 1923. Patent number 1,468,947.
Date Issued:
1923-01-01T00:00:00Z
Data Provider:
Detroit Historical Society