|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 = '425') AND (category.subclass = '469') ORDER BY date ASC, patent, type|
Total of 2 patents found where: Class is '425'; Subclass is '469';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||838,727||December 18, 1906||Die for Forming Insulators
Press to form petticoats - improvement on 716,343 (see reissue 12,934 on 6-4-1909)
|LOCKE, Fred M.
|U||1,198,732||September 19, 1916||Plunger for Forming Insulators
Plunger with holes to release pressure (see 838,727 and reissue 12,934)
|LOCKE, Louis Peer
||Plunger||Locke Insulator Mfg. Co.|
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