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| Patents for Walter A. Miller | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 633,096 | Sep. 12, 1899 | H.B. Keiper | Oscillating Bearing | |
 | D34,881 | Jul. 30, 1901 | H.B. Keiper | Design for a stand for rotary blowers and forges | |
 | D34,884 | Jul. 30, 1901 | H.B. Keiper | Design for a gear-train casing for rotary blowers | |
 | D34,885 | Jul. 30, 1901 | H.B. Keiper | Design for a gear-train casing for rotary blowers | |
 | 697,629 | Apr. 15, 1902 | H.B. Keiper | Combined gearing and casing therefor | |
| 804,860 | Nov. 21, 1905 | H.B. Keiper | Rotary blower | ||