Branchline Index [1969-09-01, 9, News, Equipment, work, Clegg, A, , , , Experimental laser track inspection demonstrated by USDOT., <table class="r-html-container"><tbody><tr><td><a href="https://www.bytownrailwaysociety.ca/phocadownload/branchline/1969/1969-09.pdf#page=9" target="_blank">Open PDF</a></td></tr></tbody></table>]