| All Patents of Type: insect exterminators |
Patents 1 -
12
of 12
      |
| 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 |
| 1,848,614 | Mar. 08, 1932 | H.L. Chapin, W.F. Folmer | Electrical Insect Exterminator | insect exterminators |
| 1,852,923 | Apr. 05, 1932 | H.L. Chapin, W.F. Folmer | Electric Insect Exterminator | insect exterminators |
| 1,936,468 | Nov. 21, 1933 | W.F. Folmer, H.L. Chapin | Insect Exterminator | insect exterminators |
| 1,960,084 | May 22, 1934 | H.L. Chapin, W.F. Folmer | Electrical Insect Exterminator | insect exterminators |
| 1,962,439 | Jun. 12, 1934 | H.L. Chapin, W.F. Folmer | Insect Exterminator | insect exterminators |
| 1,981,951 | Nov. 27, 1934 | W.F. Folmer | Adjustable Electrified Insect Screen | insect exterminators |
| 1,985,921 | Jan. 01, 1935 | W.F. Folmer | Insect Electrocuting Device | insect exterminators |
| 1,989,912 | Feb. 05, 1935 | A.A. Breuer | Steam sprayer | insect exterminators |
| 1,990,165 | Feb. 05, 1935 | A.A. Breuer | Method of and apparatus for spraying insecticides | insect exterminators |
| 2,001,414 | May 14, 1935 | H.L. Chapin, W.F. Folmer | Insect Exterminator | insect exterminators |
| 2,061,458 | Nov. 17, 1936 | H.L. Chapin, W.F. Folmer | Insect Exterminating Device | insect exterminators |
