| Patents Granted on 1939-04-18 |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 2,154,496 | Apr. 18, 1939 | N.P. Darash | Tool Holder | metalworking machine tool holders |
| 2,154,651 | Apr. 18, 1939 | O.P. Wodack, H.M. Zschau | Tool retainer for portable power driven tools | drill chucks |
| 2,154,718 | Apr. 18, 1939 | T.W. Bannon | Duplicating Machine | metal shapers |
| 2,154,739 | Apr. 18, 1939 | F.S. Floeter | Tool holder for lathes | crankshaft lathes |
| 2,154,745 | Apr. 18, 1939 | T.L. Hedgpeth | Power driven tool | drill presses |
| 2,154,747 | Apr. 18, 1939 | A.C. Heyser | Driving Tool for Miter Fasteners | nail driving tools |
| 2,154,827 | Apr. 18, 1939 | A. Von Wangenheim | Pressure Relief Device | pressure regulators |
| 2,154,899 | Apr. 18, 1939 | J. Gualtiere | Feed drum for snap fastener setters | |
| 2,154,947 | Apr. 18, 1939 | H.H. Beeny, A.H. Lloyd | Hardening Metal Surfaces | flame hardening machines |
| 2,154,999 | Apr. 18, 1939 | F.W. Seybold | Composing room saw | printer |
| 2,155,072 | Apr. 18, 1939 | H.W. Zimmerman | Machine for sizing and finishing bores | boring and turning machines |
| 2,155,082 | Apr. 18, 1939 | A.G. Decker | Portable electric tool and casing | handheld power drills |
| 2,155,110 | Apr. 18, 1939 | . | Saw Handle | saw handles |
| 2,155,337 | Apr. 18, 1939 | S. Speckert | Tool Holder | metalworking machine tool holders |
| 2,155,339 | Apr. 18, 1939 | F.A. Stoll | Burner | heating apparatus |
