Information
-
Patent Grant
-
D293791
-
Patent Number
D293,791
-
Date Filed
Wednesday, February 13, 198539 years ago
-
Date Issued
Tuesday, January 19, 198836 years ago
-
Inventors
-
Original Assignees
-
Examiners
Agents
- Schwartz, Jeffery, Schwaab, Mack, Blumenthal & Evans
-
-
US Classifications
Field of Search
US
- D14 100
- D14 102
- D14 107
- D14 114
- D14 111
- D14 109
- D14 52
- D14 53
- D14 56
- D14 57
- D14 58
- D14 59
- 361 331
- 361 332
- 361 334
- 361 335
- 361 380
- 361 381
- 361 390
- 379 93
- 379 95
- D13 40
- D13 41
-
-
Claims
- The ornamental design for a digital communication switching exchange, substantially as shown and described.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
D208633 |
Pascale et al. |
Sep 1967 |
|
D283023 |
Gibson |
Mar 1986 |
|
D284187 |
Brown et al. |
Jun 1986 |
|