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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 = '228') AND (category.subclass = '259') ORDER BY category ASC, date, patent, type

Total of 4 patents found where: Class is '228'; Subclass is '259';

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T / S Patent Date Description Patentee Category Assigned To
 Method
U Specimen known 2,094,287 September 28, 1937 Method of Manufacturing Multipart Glass Articles
Method to manufacture multiple glass objects (blocks, insulators, etc.)
ZIMMERMAN, Willard P.
HOLMES, Minot K.
Method Owens-Illinois Glass Co.
 Miscellaneous
U 2,230,205 January 28, 1941 Process of Connecting a Metal Body to a Vitreous Ceramic Body
Metallic coating to facilitate soldering metal parts onto the insulator
ROWLAND, Davidge H.
CROSKEY, Carl D.
Miscellaneous Locke Insulator Corp.
 OI
U 2,149,246 February 28, 1939 Method of Manufacturing Hollow Glass Articles
Aluminum welding of blocks
ZIMMERMAN, Willard P.
HOLMES, Minot K.
OI Owens-Illinois Glass Co.
U 2,164,093 June 27, 1939 Method of Joining Glass Block Sections
Automatic machine for joining glass blocks with aluminum
SOUBIER, Leonard D.
OI Owens-Illinois Glass Co.

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