| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO J.E. TRAINER REGARDING LETTER OF MAY 8TH] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO J. H. CHURCH REGARDING PATENT APPLICATIONS FOR COOLING METHODS] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO J. CRAWFORD REGARDING COPY OF THE INVENTORY OF EQUIPMENT UNDER THE COMMERCE DEPARTMENT][WITH ATTACHMENT] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO HOWARD R. HAMMOND REGARDING BEST WISHES FOR CONTINUED SUCCESS] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO H. W. EVANS REGARDING TANK-AUTOMOTIVE BUDGET ESTIMATES] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO H. W. EVANS REGARDING COMMUNICATION FROM ABERDEEN PROVING GROUND][WITH ATTACHMENT] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO H. W. EVANS REGARDING CHARTS USED IN PRESENTATION OF THE TANK-AUTOMOTIVE BUDGET REQUIREMENTS FOR FISCAL YEAR 1947] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO H. T. WOOLSON REGARDING RESPONSE TO INVITATION TO PARTICIPATE IN THE ASME LUNCHEON] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO H. L. WRIGHT REGARDING LETTER FROM COLONEL HAMBLETON PERTAINING TO JOB OPENINGS][WITH ATTACHMENT] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO H. A. EVANS REGARDING FILE ON TANK TRACKS] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO GENERAL G. M. WELLS REGARDING DIFFICULTIES WITH THE M19] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO F. D. MCHUGH REGARDING PREPARATION FOR ARTICLE ON TANK ENGINE PROGRAM] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO F. D. MCHUGH REGARDING ARTICLE ON THE TANK ENGINE PROGRAM] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO ELMER E. GRAY REGARDING FINAL PHASE OF REDUCTION IN FORCE] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO ELMER E. GRAY REGARDING BRONZE STAR AWARD][WITH ATTACHMENTS] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO EARL BARTHOLOMEW REGARDING LECTURE, DEMONSTRATION AND DISCUSSION] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO E.C. SULZMAN REGARDING REPRESENTATIVE OF WRIGHT AERONAUTICAL CORPORATION TO VISIT THE DETROIT ARSENAL] [WITH ATTACHMENT] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO E. T. RAGSDALE REGARDING HOW TO HANDLE REQUESTS FOR GOVERNMENT DRAWINGS] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO E. E. GRAY REGARDING HOLIDAY GREETINGS] |
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| [CORRESPONDENCE FROM COLONEL JOSEPH M. COLBY TO E. E. BLAUROCK REGARDING PROGRESS OF THE BUSHING PROGRAM AT ARMOUR RESEARCH FOUNDATION] |
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