| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Switzerland | 6 | |
| #2 | Spain | 3 | |
| #3 | France | 3 | |
| #4 | Austria | 2 | |
| #5 | United Kingdom | 2 | |
| #6 | Germany | 1 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Electrical machinery and energy |
| # | Technology | |
|---|---|---|
| #1 | Steam generation | |
| #2 | Heat-exchange device details | |
| #3 | Electric switches |
| # | Name | Total Patents |
|---|---|---|
| #1 | Schweizerische Stellwerkfabrik | 6 |
| Publication | Filing date | Title |
|---|---|---|
| GB152620A | Improvements in or relating to means for securing tubes to tube plates in heat exchanging devices and the like | |
| GB153390A | Improvements in a method and device for fitting bolts, particularly stays, tight into receptacle walls |