US Patent: 1,003,863 
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| Listing Indicator
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	        Patentee:
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 | Joseph Arnet (exact or similar names) - Chicago, IL |  
 
 
 
 
 
| Manufacturer: |  
| Not known to have been produced |  
 
 
 
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        Patent Dates:
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| Applied: | 
Feb. 06, 1911 | 
 
| Granted: | 
Sep. 19, 1911 | 
 
 
 
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                        Ralph Brendler 
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        Description: |  
| This is a simple pendulum level designed for use in a boat or airplane to determine the angle of listing in two perpendicular dimensions. |  
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