| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 1 | |
| #2 | Australia | 1 | |
| #3 | Canada | 1 | |
| #4 | Germany | 1 | |
| #5 | Denmark | 1 | |
| #6 | Finland | 1 | |
| #7 | France | 1 | |
| #8 | United Kingdom | 1 | |
| #9 | Ireland | 1 | |
| #10 | Italy | 1 | |
| #11 | Japan | 1 | |
| #12 | Netherlands | 1 | |
| #13 | Norway | 1 | |
| #14 | USSR (Union of Socialist Soviet Republics) | 1 | |
| #15 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Structural elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Elfstroem C A | 2 |
| #2 | Elfstroem Carry Allon | 2 |
| #3 | Elfstrom Carry Allon | 1 |
| #4 | Carry Allon Alfstrom | 1 |
| #5 | Elfstroem Carry A | 1 |
| #6 | Elfstrom C A | 1 |
| #7 | Karii Aron Erufusutoreemu | 1 |
| #8 | Elfstrem Karri Allon | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US4056906A | Building framework for timber house of log-cabin appearance | |
| SU695569A3 | Junction of wooden elements | |
| IE43041L | A wooden building having the appearance of a log cabin with corner joints formed by crossed interlocking log |