|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';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|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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