Grove City, OH, US
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Patent Grant
The United States of America as represented by the Secretary of the Navy
Donald J. Hackman
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Patent Grant
The United States of America as represented by the Secretary of the Navy
Donald J. Hackman
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patent Grant
The United States of America as represented by the Secretary of the Navy
Donald J. Hackman
B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
