SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (residence = 'Cambridge, MA') ORDER BY date ASC, patent, type |
Total of 4 patents found where: Residence is 'Cambridge, MA';
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T / S | Patent | Date | Description | Patentee | Category | Assigned To |
1851 | ||||||
U | 8,418 | October 14, 1851 | Improvement in Insulators for Telegraph Wires Metal or cast iron insulator with cupped dry area at bottom. Glass poured in with a conductor supporting iron rod embedded in the glass, and the cupped is coated or lined with glass, porcelain, or enamel. The bottom skirt is slanted inward 45 degrees to prevent water from splashing up inside wetting the interior surface. This feature was utilized in U-983 and U-984 made by the U. S. Pottery Co. in Bennington, VT. |
BATCHELDER, John M. |
Metal | |
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 | |
1892 | ||||||
U | 482,913 | September 20, 1892 | Insulator Tree insulator |
BROOKS, Herbert H. |
Tree | 1/2 to Augustus T. Clark |
1933 | ||||||
U | 1,892,798 | January 3, 1933 | Cable Rider Cable support tray (specimens are not uncommon to find) |
ELMER, William B. AVILA, Charles F. |
Miscellaneous | Charles B. Elmer |
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