| Project | Location | Year | Publication | Links |
|---|---|---|---|---|
| Tools and Appliances (various manufacturers) | Germany (Berlin, Solingen, Laupenheim, Altenburg, Schwenningen, etc.) | 1930 | ||
| Mounting Plates and Housings for Measuring Instruments made of Synthetic Resin Pressed Material (Eshalit) | 1933 |