December 1922 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 |
Electrical and scientific apparatus Trademarks filed in December 1922
DIODE
Filed: December 29, 1922
VACUUM TUBES
Owned by: ELECTRAD CORPORATION OF AMERICA
Serial Number: 71173960
MICO
Filed: December 26, 1922
TREATED AND UNTREATED TAPES FOR ELECTRICAL INSULATION PURPOSES
Owned by: MICA INSULATOR COMPANY
Serial Number: 71173844
KOHLER
Filed: December 4, 1922
Electric Generating Plants
Owned by: Kohler Company
Serial Number: 71172889
