| Patents for Robert R. Finn |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 1,766,598 | Jun. 24, 1930 | R.R. Finn, E.T. Bysshe | Screw-Cutting Die | tapping heads and chucks |
| 1,804,459 | May 12, 1931 | R.R. Finn, E.T. Bysshe | Screw-Cutting Die | tapping heads and chucks |
| 1,858,390 | May 17, 1932 | R.R. Finn, E.T. Bysshe | Torsion Released Die | taps and dies |
| 1,866,542 | Jul. 12, 1932 | R.R. Finn, E.T. Bysshe | Chaser | thread chasers |
| 1,924,735 | Aug. 29, 1933 | R.R. Finn, E.T. Bysshe | Means for Holding Chasers | tap and die holders |
| 1,953,528 | Apr. 03, 1934 | R.R. Finn, E.T. Bysshe | Chaser | thread chasers |
| 1,953,529 | Apr. 03, 1934 | R.R. Finn, E.T. Bysshe | Automatic Die | taps and dies |
| 1,979,023 | Oct. 30, 1934 | R.R. Finn, E.T. Bysshe | Gauge for Chaser Grinding | thread gages |
| 1,979,024 | Oct. 30, 1934 | E.T. Bysshe, R.R. Finn | Screw Threading Die | taps and dies |
| 2,035,780 | Mar. 31, 1936 | R.R. Finn, E.T. Bysshe, R.O. Beardsley | Comparator | comparators |
| 2,080,303 | May 11, 1937 | R.R. Finn, E.T. Bysshe | Circular Chaser and Mounting Therefor | thread chasers |
| 2,222,165 | Nov. 19, 1940 | R.R. Finn, R.O. Beardsley | Comparator | comparators |
| 2,333,163 | Nov. 02, 1943 | R.R. Finn | Automatic Die | taps and dies |
| 2,501,601 | Mar. 21, 1950 | R.R. Finn | Automatic Die | taps and dies |
| 2,525,596 | Oct. 10, 1950 | R.R. Finn | Optical Projection Screen | comparators |
