申请人 |
AMERICAN TELEPHONE AND TELEGRAPH CO., NEW YORK, N.Y., US |
发明人 |
DUGUAY, MICHEL ALBERT, FAIR HAVEN NEW JERSEY 07701, US;KOCH, THOMAS LAWSON, MIDDLETOWN NEW JERSEY 07748, US;KOKUBUN, YASUO, KOUNAN-KU YOKOHAMA 233, JP;PFEIFFER, LOREN N., MORRISTOWN NEW JERSEY 07960, US |