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Bearing system
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Patent number 3,947,075
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Issue date Mar 30, 1976
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Valley-Todeco, Inc.
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Hans P. Ewertz
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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3625378
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Patent number 3,625,378
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Issue date Dec 7, 1971
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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3426920
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Patent number 3,426,920
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Issue date Feb 11, 1969
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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3225206
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Patent number 3,225,206
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Issue date Dec 21, 1965
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3004439
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Patent number 3,004,439
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Issue date Oct 17, 1961
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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2889464
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Patent number 2,889,464
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Issue date Jun 2, 1959
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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1367587
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Patent number 1,367,587
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Issue date Feb 8, 1921
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS