00316cam a2200121ua 4500041001000000082001800010100002100028245006300049250001200112260005300124300001200177504000500189  aengh  a621.8bTRE/ME  aTrecoman, H F  .  aMechanical Inspection / cH F Trecoman.hTextual Documents  a1 / b.  aLondon : bSir Isaac Pitman & Sons Ltd , c1946.  a164 ; .  a