申请人 |
AT & T CORP., NEW YORK, N.Y., US |
发明人 |
BILLINGHAM, KENNETH H., FEASTERVILLE, PENNSYLVANIA 19047, US;FRANKS, JAMES E., LINDENWOLD, NEW JERSEY 08021, US;PAWLENKO, IVAN, HOLLAND, PENNSYLVANIA 18966, US;SCHILLER, FRANK J., YARDLEY, PENNSYLVANIA 19067, US;SHEMAROVSKY, ALEXANDER, ROBBINSVILLE, NEW JERSEY 08691, US |