REPORT ON DIAMOND MILLING OF ROOF PRISM BLANKS.

Dunham, Jr. Theodore.

Editorial: Office of Scientific Research and Development, National Defense Research Committee., 1945
Condición: Very Good Encuadernación de tapa blanda
Librería: Eveleigh Books (Dover, MA, Estados Unidos de America)

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. [44pp]. Bound in stiff cardstock. THIS IS A DECLASSIFIED GOVERNMENT REPORT. Section 16.1, Report No. 86, O.S.R.D., Report No. 4735. "This document contains information affecting the national defense of the United States within the meaning of the Espionage Act, U.S.C. 50;31 and 32.". Illustrated with 19 B/W photographs, drawings.From the Carnegie Institution of Washington, Mount Wilson Observatory. Copy No. 45. "This report describes a method for milling roof prisms with No. 11 Blanchard grinders. During 1943 and 1944, limited production has been conducted under a contract with the Ordnance Department. The original technique has been adapted for use with vertical spindle grinders, many improvements ahave been introduced, and an extensive study has been made of the accuracy of the angles of milled prisms.". Size: 4to - over 9¾" - 12" tall. N° de ref. de la librería 006928

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Título: REPORT ON DIAMOND MILLING OF ROOF PRISM ...

Editorial: Office of Scientific Research and Development, National Defense Research Committee.

Año de publicación: 1945

Encuadernación: Soft Cover

Condición del libro:Very Good

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