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Screw press
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Issue date Mar 2, 1982
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Otto Georg
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B30 - PRESSES
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Friction press
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Issue date Dec 13, 1977
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Hiroyasu Shiokawa
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B30 - PRESSES
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3842652
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Patent number 3,842,652
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Issue date Oct 22, 1974
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B30 - PRESSES
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3786743
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Patent number 3,786,743
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Issue date Jan 22, 1974
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B30 - PRESSES
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3604076
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Patent number 3,604,076
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B30 - PRESSES
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3579757
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Patent number 3,579,757
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Issue date May 25, 1971
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B30 - PRESSES
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3535754
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Patent number 3,535,754
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Issue date Oct 27, 1970
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B28 - WORKING CEMENT, CLAY, OR STONE
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3426574
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Patent number 3,426,574
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Issue date Feb 11, 1969
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B30 - PRESSES
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3418859
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Patent number 3,418,859
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B30 - PRESSES
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3418860
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Patent number 3,418,860
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B30 - PRESSES
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3389653
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Patent number 3,389,653
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B30 - PRESSES
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3359608
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Patent number 3,359,608
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B30 - PRESSES
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3044138
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Patent number 3,044,138
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B30 - PRESSES
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3036355
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Patent number 3,036,355
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B28 - WORKING CEMENT, CLAY, OR STONE
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2846747
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Patent number 2,846,747
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B30 - PRESSES
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2828637
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B30 - PRESSES
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2770862
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Patent number 2,770,862
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B30 - PRESSES
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B30 - PRESSES
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B30 - PRESSES
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Patent number 2,036,129
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B30 - PRESSES
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B30 - PRESSES
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B30 - PRESSES
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B30 - PRESSES
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B30 - PRESSES
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B30 - PRESSES
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B30 - PRESSES
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Patent number 1,774,148
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B30 - PRESSES
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1758772
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B30 - PRESSES