BI-DIRECTIONAL PASS-POINT SYSTEM FOR CONTROLLING THE OPERATION OF MOVABLE BARRIERS
摘要
申请公布号
CA2590140(A1)
申请公布日期
1999.09.12
申请号
CA19992590140
申请日期
1999.03.10
申请人
THE CHAMBERLAIN GROUP, INC.
发明人
TAM, RAYMOND;LOBBES, DAN;WILLMOTT, COLIN B.;FITZGIBBON, JAMES;DOMBROWSKI, KENNETH J.;SIEGLER, MARK;RATHGEBER, MARTIN;OLMSTED, ROBERT JOHN;LHOTAK, ROGER WILLIAM;VALENTE, CHRISTOPHER M.
