. Basic methods for the calibration of sonar equipment. 92 USRL TEST STATIONS CIRCUITS ⢠/Vr. /â Tff-it station Project No â OOP n;,TP //-/â ^-^^ rnpi^c; >Z p.^^y to.^^I^Sheet No. I _L Cc-r. L/r/S ii^ t i^vas-" ~ 3s',ooo'' /ssr-oi-^ t^-i&c osc. G ;7^ft^LCcT. To IHfJro j!t;<jocj" Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Office of Scientific Research and Development
. Basic methods for the calibration of sonar equipment. 92 USRL TEST STATIONS CIRCUITS ⢠/Vr. /â Tff-it station Project No â OOP n;,TP //-/â ^-^^ rnpi^c; >Z p.^^y to.^^I^Sheet No. I _L Cc-r. L/r/S ii^ t i^vas-" ~ 3s',ooo'' /ssr-oi-^ t^-i&c osc. G ;7^ft^LCcT. To IHfJro j!t;<jocj" Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Office of Scientific Research and Development. National Defense Research Committee. Washington, D. C.
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Keywords: ., bookcentury1900, bookcollectionbiodiv, bookpublisherwashingtondc
