Patent information:
| Patent: | Utility 751,664 |
| Patented: | February 9, 1904 |
| Applied: | April 4, 1902 |
| Title: | Electric Insulator |
| Description: | Composition insulator of asbestos (Brown p. 57 & 71) |
| Category: | Composition |
| Assigned to: | H. W. Johns-Manville Co. |
Patentee Information:
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 209 | INSULATORS; Sectional, multi-part, composite, or coated; |
| Class: | 106 | COMPOSITIONS: COATING OR PLASTIC |
| Subclass: | 611 | COATING OR PLASTIC COMPOSITIONS; Alkali metal silicate containing; Calcium sulfate containing; |
| Class: | 106 | COMPOSITIONS: COATING OR PLASTIC |
| Subclass: | 625 | COATING OR PLASTIC COMPOSITIONS; Alkali metal silicate containing; Ash, slag, slag wool, rock wool, mineral wool, asbestos, or organic garbage or sewage material containing; Asbestos containing; |
Known specimens:
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