/usr/share/gEDA/sym/maxim/max237-1.sym is in geda-symbols 1:1.8.2-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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description=multichannel RS-232 driver/receiver
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documentation=http://pdfserv.maxim-ic.com/en/ds/MAX220-MAX249.pdf
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MAX237
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