| # | Country | Total Patents | |
|---|---|---|---|
| #1 | France | 5 | |
| #2 | Germany | 4 | |
| #3 | Canada | 2 | |
| #4 | Switzerland | 2 | |
| #5 | Austria | 1 | |
| #6 | Finland | 1 | |
| #7 | United Kingdom | 1 | |
| #8 | United States | 1 |
| # | Industry | |
|---|---|---|
| #1 | Textiles and paper | |
| #2 | Machine tools | |
| #3 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Paper recycling | |
| #2 | Veneer production | |
| #3 | Alloys |
| # | Name | Total Patents |
|---|---|---|
| #1 | Karlstroem Karl Johan | 2 |
| #2 | Bruks Aktiebolag Wikmanshytte | 2 |
| #3 | Karlstrom Karl Johan | 1 |
| #4 | Johan Karlstroem Karl | 1 |
| #5 | Johan Karlstrom Karl | 1 |
| #6 | Norstrom John E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| GB742920A | Hard metal alloys especially for rock drill inserts and a method of manufacture thereof | |
| US2038658A | Method and apparatus for removing bark from timber by means of fluid jets | |
| CA347235A | Bark removing apparatus | |
| CA577708A | Sintered hard metal alloy for percussion rock drill inserts |