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High density compacts
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Patent number 4,655,830
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Issue date Apr 7, 1987
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Tomotsu Akashi
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B22 - CASTING POWDER METALLURGY
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3789751
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Patent number 3,789,751
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Issue date Feb 5, 1974
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3531974
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Patent number 3,531,974
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Issue date Oct 6, 1970
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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3439608
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Patent number 3,439,608
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Issue date Apr 22, 1969
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B30 - PRESSES
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3115676
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Patent number 3,115,676
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Issue date Dec 31, 1963
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B22 - CASTING POWDER METALLURGY
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3004290
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Patent number 3,004,290
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Issue date Oct 17, 1961
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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2948923
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Patent number 2,948,923
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Issue date Aug 16, 1960
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B30 - PRESSES
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2935038
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Patent number 2,935,038
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Issue date May 3, 1960
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2930315
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Patent number 2,930,315
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Issue date Mar 29, 1960
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2905080
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Patent number 2,905,080
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Issue date Sep 22, 1959
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B30 - PRESSES
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2775762
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Patent number 2,775,762
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Issue date Jan 1, 1957
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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2648125
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Patent number 2,648,125
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Issue date Aug 11, 1953
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B22 - CASTING POWDER METALLURGY
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2633093
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Patent number 2,633,093
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Issue date Mar 31, 1953
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D05 - SEWING EMBROIDERING TUFTING
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2628473
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Patent number 2,628,473
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Issue date Feb 17, 1953
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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2589732
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Patent number 2,589,732
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Issue date Mar 18, 1952
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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2549497
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Patent number 2,549,497
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Issue date Apr 17, 1951
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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2407093
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Patent number 2,407,093
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Issue date Sep 3, 1946
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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2302646
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Patent number 2,302,646
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Issue date Nov 17, 1942
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2302647
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Patent number 2,302,647
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Issue date Nov 17, 1942
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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2276259
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Patent number 2,276,259
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Issue date Mar 10, 1942
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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2149641
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Patent number 2,149,641
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Issue date Mar 7, 1939
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...