| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Germany | 14 | |
| #2 | United States | 2 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machines | |
| #3 | Textiles and paper | |
| #4 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | General building constructions | |
| #2 | Shaping clay | |
| #3 | Roof coverings | |
| #4 | Electrophonic musical instruments | |
| #5 | Typewriters | |
| #6 | Structural elements |
| # | Name | Total Patents |
|---|---|---|
| #1 | Menzel Martin | 13 |
| #2 | Martin Menzel | 2 |
| #3 | Menzel Dipl-Ing Karl-Heinz | 2 |
| #4 | Huebner Dipl-Ing Alfons | 1 |
| #5 | Heinz Menzel Karl | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3110074A | Apparatus for the production of masts, tubes, columns and the like | |
| DE1113170B | Device for the production of masts, pipes, columns and similar bodies from concrete and similar masses | |
| DE1091471B | Device for the production of masts, pipes, columns and. Like. Made of concrete, reinforced concrete and similar masses | |
| US1634753A | Molding machine |