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Quick-acting pipe connector assembly
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Patent number 5,290,072
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Issue date Mar 1, 1994
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Raymond E. Pechacek
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Pressure vessel seal
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Patent number 4,299,332
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Issue date Nov 10, 1981
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Hahn & Clay
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Raymond E. Pechacek
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Wrapping machine for layered vessels
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Patent number 4,053,971
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Issue date Oct 18, 1977
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Hahn & Clay
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Raymond E. Pechacek
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Vessel assembly
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Patent number 4,054,224
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Issue date Oct 18, 1977
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Hahn & Clay
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Raymond E. Pechacek
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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Vessel connector
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Patent number 4,009,798
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Issue date Mar 1, 1977
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Hahn & Clay
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Raymond E. Pechacek
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...