| Number | Name | Date | Kind |
|---|---|---|---|
| D150457 | Pike | Aug 1948 | |
| D179540 | Knechtsberger | Jan 1957 | |
| D313802 | Peiker | Jan 1991 | |
| D357481 | Giuntoli et al. | Apr 1995 | |
| 3562446 | Wolf | Feb 1971 | |
| 4361737 | Peterson | Nov 1982 | |
| 4685137 | Watson et al. | Aug 1987 | |
| 4741041 | Hayashi | Apr 1988 |
| Number | Date | Country |
|---|---|---|
| 0132998 | May 1990 | JPX |
| Entry |
|---|
| Kent Microphones catalog, dated Dec. 7, 1964, p. 12, M-7 Dynamic Microphone. |
| Burstein-Applebee Catalog 614, published 1963, p. 50, Uni-directional Cardioid Dynamics Microphone 545 and Shure Mike Accessories, Microphone base S38B and S36A. |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 22767 | May 1994 |