| Patents for Arthur P. Waterson |
Patents 1 -
7
of 7
      |
| Picture | Number | Date | Patentee | Title |
| | 2,464,626 | Mar. 15, 1949 | A.P. Waterson | Pilot Operated Servo Valve |
| | 2,474,134 | Jun. 21, 1949 | A.P. Waterson | Hydraulic Tool Control Unit |
 | 2,516,495 | Jul. 25, 1950 | A.P. Waterson | Hydraulic tool control unit |
| | 2,559,138 | Jul. 03, 1951 | A.P. Waterson | Duplicating Attachment for Lathes |
| | 2,576,817 | Nov. 27, 1951 | A.P. Waterson | Hydraulic Tracer Control Unit |
| | 2,691,913 | Oct. 19, 1954 | A.P. Waterson | Duplicating Attachment for Lathes |
 | 2,849,206 | Aug. 26, 1958 | A.P. Waterson | Hydraulic tracer control valve |
