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发明名称
AUDIBLE SIGNAL APPARATUS
摘要
申请公布号
CA749662(A)
申请公布日期
1967.01.03
申请号
CAD749662
申请日期
申请人
WALLACE AND TIERNAN INC.
发明人
CHARLES F. WALLACE;NORMAN S. CRESWICK;BILL G. WATTERS
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