| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 5 | |
| #2 | Switzerland | 3 | |
| #3 | United Kingdom | 3 |
| # | Industry | |
|---|---|---|
| #1 | Thermal processes | |
| #2 | Civil engineering | |
| #3 | Audio-visual technology | |
| #4 | Packaging and shipping | |
| #5 | Machine tools | |
| #6 | Machines | |
| #7 | Transport |
| # | Name | Total Patents |
|---|---|---|
| #1 | Fritz Wilhelm | 5 |
| #2 | Wilhelm Fritz | 2 |
| #3 | Max Waldemar Joehl | 1 |
| #4 | Schiemann Max | 1 |
| Publication | Filing date | Title |
|---|---|---|
| DE4217797A1 | Staircase anchor bar positioner for positioning in wall - has clamping jaws inserted in mortar filled wall hole and is set by spirit-level on longitudinal axis | |
| DE4019691A1 | Chuck for machine tool - has spiral grooves in actuating ring which is mounted on roller bearing | |
| GB243837A | Improvements in sound producing devices | |
| GB151258A | Improvements in surface apparatus for effecting transfer of heat | |
| GB191416790A | Improvements in or relating to Transmission Mechanism for Vehicles. |