000
00260 a2200121 4500
082
_a
631.4
_b
Un3t
245
1
_a
TECHNICAL MEMORANDUM
260
_a
_b
_c
300
_a
440
_a
Technical Memorandum
_v
No. 646
964
_g
CIRC
997
_a
A6983 v. 646 s C
999
_c
458262
_d
458262