February 1931 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 |
Electrical and scientific apparatus Trademarks filed in February 1931
DURO-POWR
Filed: February 28, 1931
ELECTRIC BATTERIES
Owned by: DURACELL INC.
Serial Number: 71311570
OLYMPIA
Filed: February 9, 1931
CALCULATING MACHINES
Owned by: IP GLOBAL HOLDINGS LIMITED
Serial Number: 71310862
KLIXON
Filed: February 9, 1931
TEMPERATURE CONTROLLED ELECTRIC SWITCHES USED, FOR EXAMPLE, IN THE CONTROL OF THE GAS BURNING FURNACES
Owned by: SENSATA TECHNOLOGIES, INC.
Serial Number: 71310888
C-H
Filed: February 6, 1931
ELECTRICAL APPARATUS, MACHINES, AND SUPPLIES, CONSISTING OF-- CONTROLLERS FOR DYNAMO-ELECTRIC MACHINES-TO-WIT, STARTING,…
Owned by: EATON CORPORATION
Serial Number: 71310798
DIAMOND
Filed: February 6, 1931
GAUGE GLASSES, WATER COLUMNS, AND WATER GAUGES
Owned by: DIAMOND POWDER SPECIALTY CORPORATION
Serial Number: 71310818
