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341A
343A
5-9.
SERIAL
NUMBER
EFFECTIVITY
5-10.
A
Use Code column
is
provided
to identify certain
parts that
have been added,
deleted, or
modified during
production of
the
Model
341
A
and 343 A.
Each
part for
which
a
use
code
has
been
assigned
may
be
identified
with
a particular
instrument
serial
number by
consulting the
Use Code
Effectivity List
below.
All parts
with
no code
are
used
on
all
instruments with
serial
numbers
above
123.
USE
CODE
EFFECTIVITY
NO
Model
341
A
serial
number
123 and
on.
CODE
Model 343
A
serial
number
123 and
on.
5-45
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