Field Engineers Bulletin

Field Engineers Bulletin

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TRANSPARENT DIAGONAL SCALE Designed by A. A. Lockerbie, (Party of B. H. Rigg) The transparent diagonal scale Is an instrument designed to replace the bean compass and scale for aquot;taking offaquot; geographic positions from plane tableanbsp;...

Title:Field Engineers Bulletin
Author:U.S. Coast and Geodetic Survey
Publisher: -


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