| US Patent: 409,097 
 | 
| Insulated Nippers and Cutting Instrument | 
| 
| Patentee: |  |
 | Firmin Michael Casey (exact or similar names) - Mount Vernon, NY |  
 
 
 
 
| Manufacturer: |  | Not known to have been produced |  
 
 | 
| Patent Dates: |  
| Applied: | Jan. 27, 1887 |  
| Granted: | Aug. 13, 1889 |  
 
USPTO (New site tip)| Patent Pictures: |  |  |  | Firmin Michael Casey patent August 13, 1889 |  Google Patents
 Report data errors or omissions to steward 
                        Stan Schulz
 
 | 
| 
| Description: |  | Side-cutter flat jaw pliers. The metal of the handles has serrations to firmly attach glass or porcelain surface insulation. 
The object is to provide electrical insulation for tools used on electric wiring, etc. Casey added a rubber coating to this idea in patent no. 419,111. |  |