सेफ़्टी लॅम्प
thumb|150px|sefti lॅmp sefti lॅmp (aangrezi:Safety Lamp) ek vaijnanik upakaran hai. yah prakash ke lie khanoan mean upayog hone vala upakaran hai. isaki sahayata se khanoan mean hone vale visphot ko bachaya ja sakata hai.
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