| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 21 | |
| #2 | France | 4 | |
| #3 | Austria | 3 | |
| #4 | Switzerland | 3 | |
| #5 | Denmark | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Mechanical elements | |
| #3 | Environmental technology | |
| #4 | Materials and metallurgy | |
| #5 | Macromolecular chemistry and polymers | |
| #6 | Thermal processes | |
| #7 | Organic fine chemistry | |
| #8 | Machine tools |
| # | Name | Total Patents |
|---|---|---|
| #1 | Co Torfit-Werke G A Haseke | 3 |
| #2 | Zidar Felix | 2 |
| #3 | Sonntag Arthur | 1 |
| #4 | Magnani Alessandro | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE1095184B | Method and device for the production of asbestos cement moldings by centrifugation | |
| DE1164766B | Pipe connection for pressure pipes, especially asbestos-cement pressure pipes | |
| DE1011347B | Process to prevent lime bloom on the surface of asbestos cement panels | |
| DE733594C | Device for the production of a socket pipe | |
| DE717874C | Process for the manufacture of pipes from asbestos cement | |
| DE684595C | Chimney for locomotive shed | |
| DE672807C | Fan head |