Patent information:
| Patent: | Utility 1,904,608 |
| Patented: | April 18, 1933 |
| Applied: | December 20, 1930 |
| Title: | Insulator Finishing Brushing Machine |
| Description: | Machine to grind down interlinking passages in a semi-dry insulator body for metal fittings |
| Category: | Manufacturing |
| Assigned to: | Locke Insulator Corp. |
Patentee Information:
| BETTINI, David | Baltimore, MD |
Class and subclass information:
| Class: | 15 | BRUSHING, SCRUBBING, AND GENERAL CLEANING |
| Subclass: | 88.3 | |
| Class: | 15 | BRUSHING, SCRUBBING, AND GENERAL CLEANING |
| Subclass: | 22.1 | |
| Class: | 15 | BRUSHING, SCRUBBING, AND GENERAL CLEANING |
| Subclass: | 22.2 | |
| Class: | 451 | ABRADING |
| Subclass: | 124 |
Known specimens:
| None known |
Drawings:
Page 1 |