November 1930 Nonmetallic building materials 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 |
Nonmetallic building materials Trademarks filed in November 1930
ON-GARD
Filed: November 12, 1930
METAL AND FELT WEATHER STRIPPING, METAL WEATHER STRIPPING,AND FELT WEATHER STRIPPING
Owned by: MACKLANBURG-DUNCAN COMPANY
Serial Number: 71307820
RITEX
Filed: November 11, 1930
REFRACTORY BRICK
Owned by: GENERAL REFRACTORIES COMPANY
Serial Number: 71307771
AMACO
Filed: November 6, 1930
MODELLING CLAY, CLAY FLOUR, MOIST CLAY, AND, GESSO CLAY
Owned by: AMERICAN ART CLAY CO., INC.
Serial Number: 71307571
