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| All Patents in class 72/7.3 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,453,868 | Nov. 16, 1948 | R.M. Shaw, Jr. | Apparatus for Automatically Bending Work Such as Tubing Into Serpentine Coils | metal bending machines | |
| 2,612,934 | Oct. 07, 1952 | P.P. Dubosclard | Forming roll machine | sheet metal forming rolls | |