Patent information:
| Patent: | Utility 1,779,489 |
| Patented: | October 28, 1930 |
| Applied: | May 4, 1929 |
| Title: | Method of Making Secondary Racks |
| Description: | Method of making secondary rack brackets (see 1,883,818) |
| Category: | Manufacturing |
| Assigned to: | 1/2 to Hubbard & Co. |
Patentee Information:
| PEIRCE, JR., Charles L. | Pittsburgh, PA |
Class and subclass information:
| Class: | 29 | METAL WORKING |
| Subclass: | 887 | METHOD OF MECHANICAL MANUFACTURE; Electrical device making; Insulator making; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 149R | INSULATORS; Multiple insulator assemblies; Multiple conductor; |
| Class: | 248 | SUPPORTS |
| Subclass: | 300 | BRACKETS; Of sheet material; |
| Class: | 248 | SUPPORTS |
| Subclass: | 67.7 | PIPE OR CABLE; Brackets; Double arm; |
Known specimens:
| None known |
Drawings:
Page 1 |