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

Total of 5 patents found where: Category is 'Dry-spot';

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T / S Patent Date Description Patentee Category Assigned To
 1908
U 898,921 September 15, 1908 Insulator
Dry-spot, English screw cap design
PURVES, Thomas F.
SINNOTT, John
Dry-spot  
 1912
U 1,016,780 February 6, 1912 Insulator
Dry-spot, screw cap design
RUTZKY, Paul
Dry-spot  
 1929
U 1,700,166 January 29, 1929 Insulator for Bridle Wires
Dry-spot using coke bottle top & cap
JOHNSON, Benjamin
Dry-spot American Telephone & Telegraph Co.
 1945
U 2,381,676 August 7, 1945 Insulator
Dry-spot with screw top
MATHEWS, Martin D.
Dry-spot  
 1946
U 2,406,095 August 20, 1946 Insulator
Dry-spot
MATHEWS, Martin D.
Dry-spot  

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