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KOEHRING

Dollars put into highway improvement are best invested when the concrete is manufactured by the Koehring remixing principle intermingling the cement, sand, stone and water into a uniform concrete and depositing it on the grade by the Koehring boom and bucket distributing system.

The five distinct mixing actions of the Koehring drum mean greater strength concrete or the same strength of concrete in less mixing time.

BUT

The Koehring Machine Company is not satisfied to manufacture simply a mixer that gives the greatest strength concrete, it builds a machine with individuality in each part that is designed to do the special work for which it is sold.

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State Committees

AUDITING AND FINANCE

J. H. Bateman, Chairman, clo Highway Laboratory, U. of M., Ann Arbor, Mich.

J. H. Southern, 509 Michigan Central R. R., Detroit, Mich.

PRACTICE

Warwick Ray, clo StewartWarner Corp., 1551 Woodward Ave., Detroit, Mich. Prof. Clarence T. Johnson, clo Univ. of Mich., Ann Arbor, Mich.

PUBLICITY

Otto Eckert, Chairman, City Engineer, Lansing, Mich.

ENGINEERING RATES AND

COMPENSATION

G. J. Wagner, Chairman, Director of Public Works, Grand Rapids, Mich.

DEEP WATERWAYS

C. Y. Dixon, Chairman, Federal Bldg., Detroit, Mich.

L. C. Sabin, U. S. Engineer's Office, Sault Ste. Marie, Mich.

L. W. Goddard, U. S. Ass't Eng., Grand Rapids, Mich. Gardner S. Williams,

Cornwell Bldg., Ann Arbor, Mich. Prof. H. W. King, co Univ. of Mich., Ann Arbor, Mich.

SERVICE

L. E. Ayers, Chairman, Cornwell Bldg., Ann Arbor, Mich. L. N. Hayden, 921 Belvidere Ave., Detroit, Mich.

D. M. Belyea, Secretary, Port Huron Chapter No. 721 Jenkinson Ave., Port Huron, Mich.

E. M. Burd, 421 Kelsey Bldg., Grand Rapids, Mich.

K. I. Sawyer, Jenks Block, Ishpeming, Mich.

H. H. Eymer, 600 Emerson St., Saginaw, Mich.

C. K. Redfield, co Oakland County Road Commission, Pontiac, Mich.

I. R. Ellison, City Hall, City Manager, Muskegon, Mich. Andrew Lenderink, 632 Summit St., City Engineer, Kalamazoo, Mich.

F. W. Fisch, City Engineer's Office, Flint, Mich.

M. L. Moone, clo Fargo Engineering Co., Jackson, Mich.

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