May 1939 Electrical and scientific apparatus Trademarks by day
| Sun | Mon | Tue | Wed | Thu | Fri | Sat |
|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | |
| 7 | 8 | 9 | 10 | 11 | 12 | 13 |
| 14 | 15 | 16 | 17 | 18 | 19 | 20 |
| 21 | 22 | 23 | 24 | 25 | 26 | 27 |
| 28 | 29 | 30 | 31 |
Electrical and scientific apparatus Trademarks filed in May 1939
GRIP-FLEX
Filed: May 25, 1939
Ties for Securing Electrical Conducting Wire to Insulators
Owned by: Copperwell Corporation
Serial Number: 71419794
READEX
Filed: May 22, 1939
OPAQUE PROJECTOR TO AID IN MICROSCOPIC READING
Owned by: READEX MICROPRINT CORPORATION
Serial Number: 71419686
LIBRASCOPE
Filed: May 9, 1939
BALANCE COMPUTERS-I.E., INSTRUMENTS FOR COMPUTING THE LOCATION OF THE LOAD CENTER IN AIRCRAFT, UNDER VARYING LOAD DISTRIBUTION…
Owned by: IMM, LEWIS W.
Serial Number: 71419226
