|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 = '38') ORDER BY date ASC, patent, type|
Total of 2 patents found where: Class is '38';
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|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||308,778||December 2, 1884||Composition for Making Non-Conducting Handles for Sad-Irons, &c.
Mixture of mica and glue to make solid non-conducting composition handles
|LEE, Charles Tennant
|U||1,538,238||May 19, 1925||Machine for Assembling Insulator Knobs
Machine for assembling nail-knobs, inserting the nail and crimping it so the nail cannot be removed, thus holding the parts together.
||Manufacturing||C. A. C. Automatic Machine Co.|
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