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| All Patents in class 222/556 | |||||
| Number | Date | Patentee | Title | Type | |
| 1,032,635 | Jul. 16, 1912 | H. Tscherning | Coffee-mill | coffee mills | |
| 1,401,161 | Dec. 27, 1921 | G. Lidseen | Oil-Can Spout Closer | oil cans | |