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| All Patents in class 226/152 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 363,351 | May 24, 1887 | H.A. Ainsworth | Drop-hammer | |
| 642,884 | Feb. 06, 1900 | H.M. Lucas, A. Swasey | Roller Feed for Screw Machines | ||
| 3,145,892 | Aug. 25, 1964 | J.F. Herrmann | Film Advancing Mechanism for Photographic Projectors | ||