| SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (residence = 'Washington, DC') ORDER BY date ASC, patent, type |
Total of 8 patents found where: Residence is 'Washington, DC';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
| T / S | Patent | Date | Description | Patentee | Category | Assigned To |
| 1849 | ||||||
| U | 6,779 | October 9, 1849 | Supporter for Telegraph Wires Hook encased in metal shell (also House-top insulator?) |
LIVINGSTON, L. R. ROGGEN, J. J. ADAMS, Calvin KENDALL, Amos VAIL, Alfred |
Hook | |
| 1851 | ||||||
| U | 8,419 | October 14, 1851 | Insulator for Telegraph Wires Hook embedded in metal shell (with guta percha) for bolting |
ROBBINS, Zenas C. |
Hook | |
| 1871 | ||||||
| U | 112,281 | February 28, 1871 | Improvement in Insulators for Telegraph Wires Hook, new shape |
ROBBINS, Zenas C. |
Hook | |
| U | 121,368 | November 28, 1871 | Improvement in Telegraph Insulators Triangular insulator to reduce surface contact of tie wire |
HOLLEY, Minard Y. |
Triangular | |
| 1881 | ||||||
| U | 243,513 | June 28, 1881 | Device for Deadening Sound Vibrations of Telegraph Wires Sound deadening device to prevent humming of telegraph wires |
CONNOR, Paul D. |
Miscellaneous | |
| 1894 | ||||||
| U | 529,866 | November 27, 1894 | Ornament for Lightning Rods Inexpensive lightning rod ornament in the method of construction of a weathervane |
KEYS, Charles F. |
Weathervane | |
| 1895 | ||||||
| U | 549,443 | November 5, 1895 | Electric Supporting Insulator Knob |
COLLINS, Joseph |
Knob | |
| 1934 | ||||||
| U | 1,956,526 | April 24, 1934 | Insulated Support for Electric Cables Clamp type with wire hanger |
ELLMANN, John I. |
Clamp Type | Ellmann, Inc. |
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