Carnegie Library of Pittsburgh - Pittsburgh Iron & Steel Heritage

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  • Date = 1915
  • Subject = Fort Pitt Bridge Works -- Equipment and supplies.
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The spacing table in the structural shop
The spacing table in the structural shop : equipment in Fort Pitt Bridge Works, light signals for changes in punching, method of attaching gag holders, clamps for guiding angles / by George P. Thomas.
Punching machinery., Fort Pitt Bridge Works -- Equipment and supplies.
[4 ] pages : illustrations 32 cm.