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- इसका हिस्सा Safety Light Collection, Records Related to Radium Dial Painters
Extracted text
OCR Page 1 of 2Experience
Radio acturty of Expired air
air
Sciritillation Method
Zns Screen
Leid
chamber
Microscope
1/2 size
20 to 40x
7ig I For deanstitative Work
/
cotton
Insureen
U-Tube
microscope
HOX
2005 screw
Fig II . Set up for Insoletative Test
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