March 1931 Medical 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 |
Medical apparatus Trademarks filed in March 1931
XXXX FOUREX
Filed: March 3, 1931
PROPHYLACTIC RUBBER AND MEMBRANOUS ARTICLES FOR THE PREVENTION OF CONTAGIOUS DISEASES
Owned by: SCHMID PRODUCTS CORPORATION OF PUERTO RICO
Serial Number: 71311812
