SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (residence = 'Salem, MA') ORDER BY date ASC, patent, type |
Total of 6 patents found where: Residence is 'Salem, MA';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1858 | ||||||
U | 21,492 | September 14, 1858 | Improvement in Telegraph Insulators Hook covered with rubber to insert into crossarm or pole (see 124,199) |
FARMER, Moses G. BATCHELDER, John M. |
Hook | |
1872 | ||||||
U | 124,199 | March 5, 1872 | Improvement in Telegraph Insulators Hook in vulcanite with deep recess saturated with paraffin (see 21,492) |
FARMER, Moses G. |
Hook | |
U | 124,200 | March 5, 1872 | Improvement in Telegraph Insulators Earthenware insulator soaked in mix of wax and rosin then in petroleum |
FARMER, Moses G. |
Earthenware | |
U | 124,201 | March 5, 1872 | Improvement in Compounds for Insulating Telegraph Wires, etc. Coating mixture for his patented insulators |
FARMER, Moses G. |
Coating | |
U | 129,724 | July 23, 1872 | Improvement in Insulators for Telegraphic Uses Roughened lower surface of insulator to retain patented coating mixture |
FARMER, Moses G. |
Rough | |
1886 | ||||||
U | 346,475 | August 3, 1886 | Insulator Block for Electric Conductors Wooden insulator mounted on wire to prevent wire touching other |
HAWKEN, Thomas |
Wood |
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