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| Patents Granted on 1930-07-22 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,770,899 | Jul. 22, 1930 | J.A. Anderson | Valve Spring Lifter | valve spring tools | |
| 1,770,935 | Jul. 22, 1930 | E. Lochman | Eraser-cleaning machine | ||
| 1,771,172 | Jul. 22, 1930 | B. Fraser | Wrench | self-adjust wrenches | |