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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 = '309') ORDER BY date ASC, patent, type

Total of 8 patents found where: Class is '65'; Subclass is '309';

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T / S Patent Date Description Patentee Category Assigned To
 1900
U 646,949 April 10, 1900 Press for Molding Insulators or Similar Articles
Automatic press for making insulators
BROOKFIELD, Henry M.
Press  
 1906
U 820,477 May 15, 1906 Apparatus for Manufacturing Glass Articles
Press for making glassware
CROSKEY, John H.
Press Duquesne Glass Co.
 1907
U 849,461 April 9, 1907 Glass Press
Glass press
CONWAY, Thomas J.
Press  
U 859,306 July 9, 1907 Glass Molding Machine
Glass press that can be adapted for insulator manufacture
LUCOCK, John S.
Press  
 1909
U 937,137 October 19, 1909 Machine for Producing Glass Insulators
Press for making glass insulators
ZURN, Charles M.
Press  
 1915
U 1,136,275 April 20, 1915 Press for Making Glass Insulators
Press for making glass insulators
ROEHRICH, Frank N.
Press Brookfield Glass Co.
 1936
U 2,052,343 August 25, 1936 Plastic Forming Apparatus
Insulator press
DU BOIS, David Irvin
Press Whitall Tatum Co.
 1968
U 3,416,909 December 17, 1968 Apparatus for Molding Glass Articles
Glass press that can be adapted for insulator manufacture
WILCOCK, John Edward
Press Pilkington Brothers Ltd.

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