|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 = '411') AND (category.subclass = '356') ORDER BY date ASC, patent, type|
Total of 2 patents found where: Class is '411'; Subclass is '356';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||1,750,770||March 18, 1930||Insulator Pin
Steel pin with supporting base that fits over top and edge of wooden crossarm
|AUSTIN, Arthur O.
||Pin||The Ohio Brass Co.|
|U||1,912,007||May 30, 1933||Insulator Pin
Steel pin and externally threaded steel cone support securely mounted to the crossarm
|PLIMPTON, Bentley A.
HAWLEY, Kent A.
|Pin||Locke Insulator Corp.|
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