Search the Insulator Patent Reference Library

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

Total of 2 patents found where: Category is 'Threads';

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T / S	Patent	Date	Description	Patentee	Category	Assigned To
		1877
U	196,733	October 30, 1877	Improvement in Forming Female Screw Threads in Glass Jars, Insulators, & c. Method of forming female threads inside the neck of jars and insulators	WOODWARD, Theodore F.	Threads
		1905
U	807,459	December 19, 1905	Process of Forming Glass Articles Threading process using fusible metal to form threads in glass before it melts	HARLOE, Morton	Threads	1/3 to Harry P. Decker

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