| Patents Granted on 1969-03-?? |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 3,430,851 | Mar. 04, 1969 | R.C. Abt | Automatic Centrifuge Apparatus | electrochemical machining |
| GB-1,144,631 | Mar. 05, 1969 | C.A. Sparkes | Improvements in or relating to machine tools | horizontal boring mills |
| GB-1,144,632 | Mar. 05, 1969 | C.A. Sparkes | Improvements in or relating to machine tools | horizontal boring mills |
| 3,431,799 | Mar. 11, 1969 | J.R. Bashor | Chip breaker | multiple spindle drilling heads |
| 3,432,420 | Mar. 11, 1969 | P. Pan | Electrolytic Cell Assemblies | electrolysis apparatus |
| 3,432,744 | Mar. 11, 1969 | L.J. Lauler, M.T. Thorsson | Control Circuits for Card Operated Batcher | electronic circuitry and apparatus |
| 3,432,934 | Mar. 18, 1969 | H. Schmidt | Sine plate assembly | angle bars and angle plates |
| 3,433,048 | Mar. 18, 1969 | V.J. Balunas, Jr., T.R. Hitch | High-speed multiple-action press | stamping presses |
| 3,433,164 | Mar. 18, 1969 | M.J. Neal | Motor-pump unit | |
| 3,434,244 | Mar. 25, 1969 | J. Decker | Grinding Machinery for Finishing Brake Discs | surface grinders |
| 3,434,247 | Mar. 25, 1969 | N.T. Anton, L.H. Daughetee | Vibratory tool | reciprocating or vibrating electric motors |
| 3,435,326 | Mar. 25, 1969 | R. Zechlin | Static Exciter Regulator for Generators | electric generators |
| GB-1,146,688 | Mar. 26, 1969 | R.J. Foster, B. Riley | Copying Attachment Applicable to a Lathe | metal lathe accessories and attachments |
