| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 4 | |
| #2 | France | 3 | |
| #3 | United Kingdom | 2 | |
| #4 | Italy | 1 | |
| #5 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Mechanical elements | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Nails | |
| #2 | Tools for connecting or disengaging | |
| #3 | Making forged metal products |
| # | Name | Total Patents |
|---|---|---|
| #1 | Diehl Karl | 3 |
| #2 | Bode Ernst | 3 |
| #3 | Bauer Carl-Otto Dipl Ing | 2 |
| #4 | Bode E | 1 |
| #5 | Diehl K | 1 |
| #6 | Bauer C-O | 1 |
| #7 | Bauer Carl-Otto | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE2811108A1 | Toothed locking washer for nut or bolt - has tooth rear faces steeper on side furthest from screw head | |
| FR2402099A1 | LOCKING TEETH THREADED ELEMENT | |
| DE2735546A1 | Slotted screw, screwdriver and tools for making such screws | |
| DE2610747A1 | Screw head with release resisting teeth - has teeth number and size dimensioned for optimum indentation of component |