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1978-11-06
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1983-06-16
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1983-05-25
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1982-02-04
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1982-04-15
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1987-06-03
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1986-09-15
FUEL CLEANING DEVICE
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1979-09-03
METHOD AND DEVICE FOR SCREWING PIPE SLEEVES
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1985-05-28
DEVICE AND METHOD FOR THE PROCESSING OF CORRUGATED CARDBOARD
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1989-02-15
METHOD AND APPARATUS FOR THE EFFLUENT COMBUSTION GAS ANALYSIS
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1983-03-22
PROCESS AND DEVICE FOR THE PREPARATION OF FUELS
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1981-05-21
PROCEDURE FOR INTERNAL CLEANING OF PIPES
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1986-08-27
METHOD FOR INTERNAL AND EXTERNAL COATING OF PIPES AND DEVICE FOR THE IMPLEMENTATION OF SUCH METHOD
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1979-07-16
SOCKET TUBE CONNECTION, METHOD OF FORMING THE SOCKET TUBE CONNECTION AND THE DEVICE FOR FORMING THE SOCKET TUBE CONNECTION
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1979-03-23
OF THE PIPES ELASTIC DEVICE FOR THE FITTING
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1986-04-30
PROCESS AND DEVICE FOR THE TRANSFER OF YARNS OF YARNS
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1979-03-12
DEVICE FOR CLEANING THE INTERNAL SURFACES OF TUBE ELEMENTS
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1985-08-10
PROCEDURE AND DEVICE FOR THE MANUFACTURE OF TUBULAR ELBOWS
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1978-08-15
Method and apparatus for conveying through pipeline
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1980-05-12
Inspecting and repairing device for inner portion of pipe
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1983-03-25
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1978-01-16
METHOD OF TREATMENT AND STRENGTHENING THE INTERNAL SURFACE OF PIPES
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1985-05-21
DEVICE AND PROCEDURE FOR CUTTING THE END OF PIPES
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1979-01-15
METHOD AND EQUIPMENT FOR CIRCULAR CLEANING OF CLOSED ELEMENTS, ESPECIALLY TUBES WITH SMALL DIAMETERS
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1985-09-13
PIPE CONNECTION DEVICE