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15:54, 25 August 2011 (diff | hist) . . (+706)‎ . . Treadle pump ‎ (→‎Technical specification: additional info from "Low Cost Handpumps" RWSN field note)
15:43, 25 August 2011 (diff | hist) . . (+95)‎ . . Treadle pump ‎ (→‎Cost)
15:38, 25 August 2011 (diff | hist) . . (+160)‎ . . Treadle pump ‎ (Added link to relevant RWSN field note)

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