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| Patents for Edward Charles Robert Marks | |||||
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| Picture | Number | Date | Patentee | Title | |
 | GB-190,802,813 | Sep. 24, 1908 | E.C. Marks | Duplex hacksaw | |
 | GB-190,823,018 | Jan. 28, 1909 | E.C. Marks | Improvements in Hack Saw Machines | |
| GB-191,002,214 | Jun. 02, 1910 | B.F. Watkins, E.C. Marks | Improved portable saw mill | ||