| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Machine tools | |
| #3 | Surface technology and coating | |
| #4 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Metal tempering | |
| #2 | Soldering, welding and flame cutting | |
| #3 | Ropes | |
| #4 | Coating metallic material |
| # | Name | Total Patents |
|---|---|---|
| #1 | Puengel Dr-Ing Wilhelm | 2 |
| #2 | Mattmann Otto | 1 |
| #3 | Puengel Wilhelm Dr-Ing | 1 |
| #4 | Berndt Georg | 1 |
| #5 | Knipping Hans | 1 |
| #6 | Schulz Dr-Ing Ernst Hermann | 1 |
| #7 | Komers Dipl-Ing Max | 1 |
| #8 | Puengel Wilhelm Dr | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE806856C | Supply of cooling air in air patenting systems | |
| DE806855C | Device for air patenting | |
| DE918429C | Welding process | |
| DE888791C | Process for hot-dip galvanizing of iron and steel wires and strips | |
| DE881673C | Method for processing sheet metal, strips, etc. Like. By deep drawing | |
| DE699485C | len made of steel wires |