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83. Airlift International, Inc.
84. Hughes Tool Co.
85. Cessna Aircraft Co.
86. Atlantic Research Corp.
87. Sverdrup & Parcel & Associates, Inc.
88. American Mfg. Co. of Texas
89. J.P. Stevens & Co., Inc.
90. Vinnell Corp.
91. Westinghouse Air Brake Co.
92. System Development Corporation
93. Northwest Airlines, Inc.
94. Gulf Oil Corp.
95. Smith Investment Co.
96. Motorola, Inc.
97. Cities Service Co.
98. Tumpane Co., Inc.
99. Union Carbide Corp.
100. Maxson Electronics Corp.
* M.I.T. and Johns Hopkins, the only two academic entries on an otherwise corporation list, are among the top 100 because both institutions are involved in expensive applied research in such fields as Over-the-horizon radar, electromagnetic applications and military uses for the laser beam. M.I.T.'s contracts last year totaled $94.9 million, while Hopkins' amounted to $71.1 million.