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NAUTICAL  SLIDE RULE
( TIME-SPEED-DISTANCE )
( 7_1/2" / 19 cm   Diameter )



WEEMS & PLATH, INC.,   Annapolis, Maryland / USA   (1999)

This Nautical Slide Rule was produced from 1950s until today.
The HISTORY of the WEEMS & PLATH company can be found in:

   http://www.weems-plath.com/weems-and-plath-story.php

impressum:
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© C.HAMANN   http://public.beuth-hochschule.de/~hamann   01/22/12