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| Patents for Alfred George Cash | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,108,697 | Aug. 25, 1914 | A.G. Cash | Indicator | test indicators | |
| 1,235,551 | Aug. 07, 1917 | A.G. Cash | Test-indicator | test indicators | |
| 1,395,087 | Oct. 25, 1921 | H.O. Brion | Center-testing device | measuring tools | |
| 1,645,473 | Oct. 11, 1927 | A.G. Cash | Surface test indicator | test indicators | |