September 1931 Lubricants and fuels 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 |
Lubricants and fuels Trademarks filed in September 1931
SINCLAIR PENNSYLVANIA MOTOR OIL
Filed: September 25, 1931
LUBRICATING OIL
Owned by: SINCLAIR REFINING COMPANY
Serial Number: 71319421
PARAFLOW
Filed: September 21, 1931
LUBRICATING OILS
Owned by: STANDARD OIL DEVELOPMENT COMPANY
Serial Number: 71319265
PENGRADE
Filed: September 15, 1931
LUBRICATING OILS
Owned by: FRED G. CLARK, INC.
Serial Number: 71319058
GELVA
Filed: September 14, 1931
SYNTHETIC RESINOUS MATERIAL
Owned by: HENKEL AG & CO. KGAA
Serial Number: 71319041
