Read about the Texas Magnum.
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Two slide rule collectors in Texas design
and build the longest slide rule and set a new worlds record.
Read about the Texas Magnum. |
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An unsual back-light screen projection slide rule. Only five were made and even documentation on them is also very rare. |
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A temporary K & E slide rule sold during WW II. |
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Web Layout - Copyright © 1999-2011 Jay Francis Revised -- 11 Oct 2011 [JGF] |