| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 11 |
| # | Industry | |
|---|---|---|
| #1 | Medical technology | |
| #2 | Machines | |
| #3 | Basic materials chemistry |
| # | Technology | |
|---|---|---|
| #1 | Syringes | |
| #2 | Spraying devices | |
| #3 | Diagnosis and surgery | |
| #4 | Gas, coke and tar production |
| Publication | Filing date | Title |
|---|---|---|
| DE369904C | Powder blower housing | |
| DE357045C | Powder blower housing | |
| DE343724C | Urethral illumination device for viewing the mucous membranes of the urethra | |
| DE338439C | Bougie | |
| DE331581C | Device for removing purulent secretions from the urethra | |
| DE365049C | Tube speculum for women | |
| DE348622C | Powder blower | |
| DE350825C | Bougie | |
| DE353959C | Injection syringe |