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| Patents for Howe Safety Appliance Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,157,109 | Oct. 19, 1915 | A.F. Howe | Jointer-guard | jointers | |
| 1,351,908 | Sep. 07, 1920 | A.F. Howe | Safety-guard for rotary grinding machines | bench or pedestal grinders | |
| 1,375,690 | Apr. 26, 1921 | L.W. George | Finger-guard | metalworking machine safety guards | |
| 1,375,698 | Apr. 26, 1921 | A.F. Howe | Safety-guard for swing-saws | circular crosscut saws | |