Patent 1916649 - 1916649
| United States Patent | Patent Number 1,916,649 |
| Issue Date: | Issued July 4, 1933 |
| Current U.S. Class: | 401/263 - 15/231 |
| Current International Class: | A47L013/312 (20060101) A47L013/10 (20060101) |
| Current CPC Class: | A47L 13/312 (20130101) |
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