| Patents for Henry B. Keiper |
Patents 16 -
30
of 33
      |
| Number | Date | Patentee | Title | Type |
| 676,324 | Jun. 11, 1901 | H.B. Keiper | Mechanical movement | forge blowers |
| D34,880 | Jul. 30, 1901 | H.B. Keiper | Design for a stand for rotary blowers and forges | forge blowers |
| D34,881 | Jul. 30, 1901 | H.B. Keiper | Design for a stand for rotary blowers and forges | forges |
| D34,882 | Jul. 30, 1901 | H.B. Keiper | Design for a gear-train casing for rotary blowers | forge blowers |
| D34,883 | Jul. 30, 1901 | H.B. Keiper | Design for a gear-train and rotary-blower casing | forge blowers |
| D34,884 | Jul. 30, 1901 | H.B. Keiper | Design for a gear-train casing for rotary blowers | forge blowers |
| D34,885 | Jul. 30, 1901 | H.B. Keiper | Design for a gear-train casing for rotary blowers | forge blowers |
| 697,629 | Apr. 15, 1902 | H.B. Keiper | Combined gearing and casing therefor | forge blowers |
| 767,282 | Aug. 09, 1904 | H.B. Keiper | Drilling-machine | drill presses |
| 804,860 | Nov. 21, 1905 | H.B. Keiper | Rotary blower | forge blowers |
| 869,247 | Oct. 29, 1907 | H.B. Keiper | Combined motor and hand operated rotary blower | forge blowers |
| 874,893 | Dec. 24, 1907 | H.B. Keiper | Tuyère | forging machines |
| 997,920 | Jul. 11, 1911 | H.B. Keiper | Ball and roller bearing | industrial machine bearings |
| 1,165,357 | Dec. 21, 1915 | H.B. Keiper | Drilling-machine | drilling and boring |
| 1,217,773 | Feb. 27, 1917 | H.B. Keiper | Audible Speed Indicator | milking tools |
