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"JAMES DONALD WALKER"
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"JAMES DONALD WALKER"
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Cast beams for filterbed with cross flow at ends
by
WALKER
;
JAMES DONALD
Year of Publication
20.06.1978
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DISTRIBUTION INLET SYSTEM WITH AUTOMATIC TANGENTIAL-GATE ADJUSTMENT
by
WALKER
;
JAMES DONALD
Year of Publication
16.12.1975
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HIGH-OXYGEN TREATMENT OF WASTE WITH SELECTIVE OXYGEN RECIRCULATION
by
WALKER
;
JAMES DONALD
Year of Publication
18.03.1975
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DEEP TANK AERATION USING EDUCTOR TUBES OF ELONGATE CROSS-SECTION
by
JAMES DONALD WALKER
Year of Publication
03.10.1972
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AIR-LIFT PUMP WITH SCALLOPED AIR-LIBERATION RINGS, AT TWO LEVELS
by
JAMES DONALD WALKER
Year of Publication
26.09.1972
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METHOD AND APPARATUS FOR DISPERSING COAGULANT INTO A WATER STREAM
by
JAMES DONALD WALKER
Year of Publication
30.05.1972
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COMPLETE MIX SEWAGE TREATMENT SYSTEM
by
JAMES DONALD WALKER
Year of Publication
14.03.1972
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Aeration equipment with easy-raising facilities
by
WALKER JAMES DONALD
Year of Publication
05.09.1967
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Sewage treatment plants with movable partition
by
WALKER JAMES DONALD
Year of Publication
04.04.1967
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Sludge collector method and apparatus
by
WALKER JAMES DONALD
Year of Publication
15.11.1966
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11
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Sludge digesters
by
WALKER JAMES DONALD
Year of Publication
23.03.1966
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Intermittent stirring apparatus for digesters and method of operating a digester
by
WALKER JAMES DONALD
Year of Publication
22.03.1966
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Aerators with water-sealed blow-off
by
WALKER JAMES DONALD
Year of Publication
22.03.1966
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Process for digesting sludge and digester therefor
by
WALKER JAMES DONALD
Year of Publication
13.07.1965
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Digester with gas lifts positioned by gas-lock tubes
by
WALKER JAMES DONALD
Year of Publication
08.06.1965
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Tank aeration with clustered freeflowing air orifices alone
by
WALKER JAMES DONALD
Year of Publication
20.10.1964
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Air-activated carbonation
by
WALKER JAMES DONALD
Year of Publication
07.08.1962
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18
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Digester
by
WALKER JAMES DONALD
Year of Publication
11.10.1955
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19
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Apparatus for backflushing sectional filters
by
WALKER JAMES DONALD
Year of Publication
25.05.1954
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Clarification apparatus
by
WALKER JAMES DONALD
Year of Publication
21.04.1953
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general tagging of cross-sectional technologies spanning over several sections of the ipc
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