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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Pug Mill') ORDER BY date ASC, patent, type

Total of 2 patents found where: Category is 'Pug Mill';

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T / S	Patent	Date	Description	Patentee	Category	Assigned To
		1892
U	473,497	April 26, 1892	Pug Mill Pug mill for extruding clay	CROSSLEY, Joseph	Pug Mill
		1942
U	2,297,646	September 29, 1942	Pug Mill Pug mill design to prevent stresses and strains in the clay as it is extruded	BELLEZZA, Russell G. SKIPPER, Edward M.	Pug Mill	Locke Insulator Corp.

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