000 00381nam a2200133 a 4500
008 170703s1964#### ||||f#|||||00| 0#uuu#d
003 AR-SmCIES
091 _a694 PMM
100 1 _aWhite, P. A. F.
_eed.
245 1 0 _aHigh efficiency air filtration.
260 _a[s.l.] :
_b[s.n.],
_c1964.
999 _c20205
_d20205