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Patents for Harrison L. Chapin
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
D85,817Dec. 22, 1931H.L. Chapin, W.F. FolmerElectric Lamp and High Tension Insect Destoyerinsect exterminators
1,848,614Mar. 08, 1932H.L. Chapin, W.F. FolmerElectrical Insect Exterminatorinsect exterminators
1,852,923Apr. 05, 1932H.L. Chapin, W.F. FolmerElectric Insect Exterminatorinsect exterminators
1,936,468Nov. 21, 1933W.F. Folmer, H.L. ChapinInsect Exterminatorinsect exterminators
1,960,084May 22, 1934H.L. Chapin, W.F. FolmerElectrical Insect Exterminatorinsect exterminators
1,962,439Jun. 12, 1934H.L. Chapin, W.F. FolmerInsect Exterminatorinsect exterminators
2,001,414May 14, 1935H.L. Chapin, W.F. FolmerInsect Exterminatorinsect exterminators
2,061,458Nov. 17, 1936H.L. Chapin, W.F. FolmerInsect Exterminating Deviceinsect exterminators
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