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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '65') AND (category.subclass = '171') ORDER BY category ASC, date, patent, type

Total of 4 patents found where: Class is '65'; Subclass is '171';

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T / S Patent Date Description Patentee Category Assigned To
 OI
U 2,034,925 March 24, 1936 Hollow Building Block
Method in manufacturing glass to glass seal welded blocks
SLAYTER, Games
IRVINE, Jan S.
THOMAS, JR., John H.
OI Owens-Illinois Glass Co.
 Press
U 596,651 January 4, 1898 Press for Making Insulators
Press for making insulators
BROOKFIELD, Henry M.
Press William Brookfield
U 2,052,343 August 25, 1936 Plastic Forming Apparatus
Insulator press
DU BOIS, David Irvin
Press Whitall Tatum Co.
U 2,215,984 September 24, 1940 Apparatus for Producing Hollow Glass Articles
Glass suction press for CD 128
SOUBIER, Leonard D.
Press Owens-Illinois Glass Co.

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