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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Gutta') ORDER BY assigned_to ASC, date, patent, type

Total of 2 patents found where: Category is 'Gutta';

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T / S Patent Date Description Patentee Category Assigned To
U 64,315 April 30, 1867 Improvement in Telegraph Insulator
Gutta-percha and bell covering to keep section of wire dry
HENDRICKSON, Stephen C.
Gutta  
U 105,625 July 26, 1870 Improvement in Telegraph Insulators
Gutta-percha, paraffin or other insulation separating two metal shells
BALDWIN, William W.
Gutta  

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