File:Doug Alkire 5300 5.jpg: Revision history

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2 February 2013

  • curprev 12:1912:19, 2 February 2013‎ Dnevil talk contribs‎ 308 bytes +308‎ Three safety valves bleed off steam when the pressure in the boiler taps 140 pounds. http://books.google.com/books?id=TNQDAAAAMBAJ&pg=RA1-PA147&lpg=RA1-PA147&dq=Doug+Alkire+IBLS&source=bl&ots=YSDIHeFmhn&sig=NKenBwiFm9LV2GIwIxVNyHTJki0&hl=en&sa=X&ei=IF...
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