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| Patents for Eastern Machine Screw Corp. | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,148,510 | Aug. 03, 1915 | W.H. Gates | Self Opening Adjustable Die Head | ||
| 1,358,074 | Nov. 09, 1920 | W.H. Gates | Die Head | ||
 | 1,428,840 | Sep. 12, 1922 | W.H. Gates | Combination Socket Wrench | |
| 1,464,177 | Aug. 07, 1923 | W.H. Gates | Die Head | ||
| 1,615,676 | Jan. 25, 1927 | C.W. Bettcher | Die Head | ||