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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (assigned_to = 'H. S. Rottenborg and H. C. Hansen') ORDER BY date ASC, patent, type

Total of 1 patents found where: Assigned To is 'H. S. Rottenborg and H. C. Hansen';

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T / S Patent Date Description Patentee Category Assigned To
 1915
U 1,135,940 April 13, 1915 Lightning Rod Cable
Flexible lightning rod conductor made of twisted and spiralled wire cable		 JUEL, Peter J.
 Lightning Rod H. S. Rottenborg and H. C. Hansen

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