December 1929 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 December 1929
"DE-ION"
Filed: December 20, 1929
ELECTRIC-CIRCUIT BREAKERS
Owned by: WESTINGHOUSE ELECTRIC CORPORATION
Serial Number: 71293946
REACTIFORMER
Filed: December 14, 1929
COMBINED METER TEST SWITCHES AND PHASING TRANSFORMERS FOR REACTIVE COMPONENT METERING
Owned by: SUPERIOR SWITCHBOARD & DEVICES COMPANY,THE
Serial Number: 71293699
MCCAA
Filed: December 13, 1929
BREATHING APPARATUS USED BY PERSONS WHILE IN ATMOSPHERES CONTAINING POISONOUS OR NOXIOUS GASES
Owned by: MINE SAFETY APPLIANCES COMPANY
Serial Number: 71293630
INCA
Filed: December 10, 1929
ENAMEL, AND INSULATED WIRE FOR ELECTRICAL USES
Owned by: INCA MANUFACTURING CORPORATION
Serial Number: 71293470
