Patent information: 
  | Patent: | Utility 1,474,256 |  
  | Patented: | November 13, 1923 |  
  | Applied: | March 14, 1917 |  
  | Title: | Insulator |  
  | Description: | Special columnar insulators to support structure for a radio transmitter |  
  | Category: | Radio |  
  | Assigned to: | Locke Insulator Corp. |  
 
Patentee Information: 
Class and subclass information: 
  | Class: | 336 | INDUCTOR DEVICES |  
  | Subclass: | 207 | COIL OR COIL TURN SUPPORTS OR SPACERS;  With coil turn spacer; |  
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |  
  | Subclass: | 148 | INSULATORS;  Multiple insulator assemblies; |  
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |  
  | Subclass: | 150 | INSULATORS;  Multiple insulator assemblies;  Strings and stacks; |  
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |  
  | Subclass: | 163R | INSULATORS;  With insulator-supporting or attaching means;  Support and/or insulator embracing or clamping; |  
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |  
  | Subclass: | 179 | INSULATORS;  With terminal elements;  Plural;  Multi-part, sectional or composite insulator;  Protected rod type; |  
  | Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |  
  | Subclass: | 209 | INSULATORS;  Sectional, multi-part, composite, or coated; |  
 
Known specimens: 
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 Drawings: 
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