Patent information:
| Patent: | Utility 464,770 |
| Patented: | December 8, 1891 |
| Applied: | October 30, 1890 |
| Title: | Clamp for Electric Wires |
| Description: | Nail-knob with matching caming grooves. Rotating cap tightens it against the insulated covered wire and the screw or nail secures the cap in that position. |
| Category: | Knob |
| Assigned to: |
Patentee Information:
| GREEN, John Jay | Elizabeth, NJ |
| BROWN, George C. | Elizabeth, NJ |
Class and subclass information:
| Class: | 248 | SUPPORTS |
| Subclass: | 67.5 | PIPE OR CABLE; Brackets; Divided knob or cleat; |
| Class: | 24 | BUCKLES, BUTTONS, CLASPS, ETC. |
| Subclass: | 134R | CORD AND ROPE HOLDERS; Pivoted part; Cam lever; |
Known specimens:
| Number: |  |
Drawings:
Page 1 |