| All Patents in class 72/306 |
Patents 1 -
4
of 4
      |
| Number | Date | Patentee | Title | Type |
| 396,319 | Jan. 15, 1889 | M. Young | Machine for Bending Hinge Blanks | |
| 1,636,803 | Jul. 26, 1927 | J.M. Brown | Machine for folding stovepipe blanks | sheet metal brakes |
| 3,426,570 | Feb. 11, 1969 | J.H. Leonard, C.J. Bath | Stretch Wrapping Fixture and Combination Thereof With Drawing Dies and Press | metal stretch forming machines |
| 3,459,025 | Aug. 05, 1969 | C.J. Bath | Stretching Fixture With Quadrilateral Linkage Control of Stretch Head Movements | metal stretch forming machines |
