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1749943
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Patent Grant
1749943
References
Source
Patent Number
1,749,943
Date Filed
Not available
Date Issued
Tuesday, March 11, 1930
94 years ago
CPC
B61K13/04 - Passenger-warning devices attached to vehicles Safety devices for preventing accidents to passengers when entering or leaving vehicles
US Classifications
040 - Card, picture, or sign exhibiting
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