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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (last_name = 'LE BARON') AND (first_name = 'Charles L.') ORDER BY date ASC, patent, type

Total of 3 patents found where: Last Name is 'LE BARON'; First Name is 'Charles L.';

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T / S Patent Date Description Patentee Category Assigned To
 1874
U 149,762 April 14, 1874 Improvement in Telegraph Insulators
Cylindrical grooved insulator held horizontally by pin		 LE BARON, Charles L.
 Cylinder  
U 149,763 April 14, 1874 Improvement in Telegraph Insulators
Slotted block to hold wire held to pole with unique pin		 LE BARON, Charles L.
 Slotted  
U 154,258 August 18, 1874 Improvement in Telegraph Insulators
Slotted insulator to hold wire		 LE BARON, Charles L.
 Slotted  

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