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发明名称
METHOD AND MEANS FOR CONTINUALLY AND SIMULTANEOUSLY SURVEYING AND ALIGNING RAILROAD TRACK
摘要
申请公布号
CA745759(A)
申请公布日期
1966.11.08
申请号
CAD745759
申请日期
申请人
CANADA IRON FOUNDRIES LIMITED
发明人
HELMUTH R. E. VON BECKMANN;JOHN K. STEWART
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