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| All Patents in class 439/481 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,455,786 | Dec. 07, 1948 | C.W. Lanter | Handle for portable blowers | blowers | |
| 2,936,329 | May 10, 1960 | P. Zasadny | Switch mounting | electric switches | |