Schereschewsky, Joseph Williams, 1873-, Tuck, Davis Henry, 1886-1953, United States. Public Health Service. Public health bulletin no. 71 · Washington, Govt. print. off. · leaf 216
F-9 and 60-watt tungsten lamp (small bulb). 196 W0. i 1 w ^ ^^^^g ^^^^^^^^ i ^ i ^^ ^^B ^^^^^^^^^^ ^^^^^^^ ^^^B —-F^^^^^^^^^^^^^Wl^xwWvvo^ ^^^^^^p ^^^^5^^^ ^^ ^ ^g~^ it-V^ Y^^3^ ffO ^ ^■/?Y-////,^^yyOi^6^ ^^^^^^^^^sfe ^^^^^^^^^§ Mfc^^^^E6«^r;pSa8e ^^^^^^^^p= ;^^^^^^^^t = uumm 1 ■ 1 1 1 1 I 1 H /^ ^… … Fig. 20.—Distribution curve of reflector F-9 and 100-watt tungsten lamp. 198
Occupational diseases · Factories · Textile industry · Industries
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
