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| Patents for H. A. Rahn | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,202,019 | Oct. 24, 1916 | J. Bath | Micrometer Calipers | micrometers | |
| 1,232,801 | Jul. 10, 1917 | H.J. Hjorth | Universal Lathe Attachment | metal lathe accessories and attachments | |
| 1,274,452 | Aug. 06, 1918 | J.J. Richards, Jr. | Grease Gun Filler | grease guns | |