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Patents for H. R. Eggers | |||||
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Picture | Number | Date | Patentee | Title | |
![]() | 1,351,230 | Aug. 31, 1920 | P.E. Chapman | Armature and coil winding machine | |
![]() | 1,523,630 | Jan. 20, 1925 | P.E. Chapman | Armature-winding machine |