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| All Patents in class D22/123 | |||||
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| Number | Date | Patentee | Title | Type | |
| D85,817 | Dec. 22, 1931 | H.L. Chapin, W.F. Folmer | Electric Lamp and High Tension Insect Destoyer | insect exterminators | |
| 1,936,468 | Nov. 21, 1933 | H.L. Chapin, W.F. Folmer | Insect Exterminator | insect exterminators | |