Patent information:
Patent: | Utility 127,041 |
Patented: | May 21, 1872 |
Applied: | |
Title: | Improvement in Fire Alarm Signal Boxes |
Description: | Design for a fire alarm signal box |
Category: | Fire Alarm |
Assigned to: | |
Patentee Information:
Class and subclass information:
Class: | 340 | COMMUNICATIONS: ELECTRICAL |
Subclass: | 295 | |
Class: | 340 | COMMUNICATIONS: ELECTRICAL |
Subclass: | 297 | |
Known specimens:
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Drawings:
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