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| All Patents in class 415/119 | |||||
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| Number | Date | Patentee | Title | Type | |
| 11,511 | Aug. 08, 1854 | S.W. Ruggles | Fan-blower | blowers | |
| 2,056,517 | Oct. 06, 1936 | B.M. Guthrie | Fan or Blower | fans and blowers | |
| 2,083,996 | Jun. 15, 1937 | T.G. Jonn | Centrifugal fan | vacuum cleaners | |