R Band Photometry of X-Ray Selected BL Lacertae Objects: 1ES 0229+20, 1ES 0323+02, 1ES 0502+67, 1ES 0647+25, 1ES 0806+52, 1ES 0927+50, 1ES 1028+51, 1ES 1959+65 and 1ES 2344+51

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