Subject name ssim: Jeffery, Joseph Arthur - LGBT Detroit: Civil Rights in Michigan - Michigan Memories Search Results

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1. Portion of a patent filing mounted on board, for a furnace for decorating ceramic ware, invented by J

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
Collection:: Champion Spark Plug Co.

2. 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