| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 4 | |
| #2 | United States | 4 | |
| #3 | Germany | 2 | |
| #4 | United Kingdom | 2 |
| # | Industry | |
|---|---|---|
| #1 | Machine tools | |
| #2 | Civil engineering | |
| #3 | Engines, pumps and turbines | |
| #4 | Machines | |
| #5 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Percussive tools | |
| #2 | Earth drilling | |
| #3 | Forging | |
| #4 | Gearing | |
| #5 | Unspecified technologies | |
| #6 | Machines |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ernesto Curti | 4 |
| #2 | Curti Ernesto | 4 |
| Publication | Filing date | Title |
|---|---|---|
| GB312595A | Improvements in or in connection with pneumatically operated percussive tools | |
| US1867254A | Pneumatic tool operating apparatus | |
| GB235946A | Improvements in or relating to fluid power transmission and apparatus operated thereby | |
| US1629437A | Apparatus for generating, controlling, and utilizing air currents | |
| US1502233A | Pneumatic hammer | |
| US1464809A | Pneumatic hammer |