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SPECIMEN JAR with ground-in glass stopper with knob
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PNEUMATIC TROUGH round form
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MORTAR machine pressed,with glass pestle
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VACUUM DESICCATOR with ground-in stopcock and porcelain plate
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VACUUM DESICCATOR with ground-in stopcock and porcelain plate
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VACUUM DESICCATOR with ground-in stopcock and porcelain plate,amber glass
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DESICCATOR with porcelain plate
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DESICCATOR with porcelain plate,amber glass
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BELL JAR high straight form
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BELL JAR high straight form,with knob
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