| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 3 | |
| #2 | Germany | 2 | |
| #3 | Spain | 2 | |
| #4 | France | 2 | |
| #5 | Canada | 1 | |
| #6 | Switzerland | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | Ireland | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements |
| # | Technology | |
|---|---|---|
| #1 | Pistons and sealings |
| # | Name | Total Patents |
|---|---|---|
| #1 | Processes Ltd Harel Mechanical | 1 |
| #2 | Harel Lucien | 1 |
| #3 | Guardiola Louis Sobrino | 1 |
| Publication | Filing date | Title |
|---|---|---|
| IE18738L | Combustion engine piston packing. | |
| GB497823A | Improvements in and relating to piston packings | |
| CA442757A | Piston packing |