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All Patents of Type: safety guards and apparatus | |||||
Number | Date | Patentee | Title | Type | |
213,292 | Mar. 18, 1879 | F. Lunkenheimer | Safety-Plug | safety guards and apparatus | |
1,333,135 | Mar. 09, 1920 | J.A. Secor | Foot Guard for Flywheels | safety guards and apparatus |