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| Patents for W. A. Bertram | |||||
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| Number | Date | Patentee | Title | Type | |
| 191,111 | May 22, 1877 | E. Cather | Improvement in machines for compressing the ends of blind-slats | windowblind machines | |
| 218,002 | Jul. 29, 1879 | H. Ducsh | Metal-Drilling Machine | drill presses | |
| 231,525 | Aug. 24, 1880 | W.H. Bateman, F.X. Hooper | Printer's galley | printer | |
| 252,313 | Jan. 17, 1882 | G. Grill | Guard for variety molding-machines | woodworking machine safety guards | |
| 261,090 | Jul. 11, 1882 | G. Grill | Circular-saw guard | woodworking machine safety guards | |