RCA-Photophone, Inc.
(
= winner )
= winner )| 1930-31 | Scientific or Technical Award (Class I). To Electrical Research Products, Inc., RCA-Photophone, Inc., and RKO Radio Pictures, Inc., for noise reduction recording equipment. |
| 1930-31 | Scientific or Technical Award (Class III). To RCA-Photophone, Inc. for ribbon microphone transmitters. |
2 Nominations