A New Low-Speed Black-and-White Camera Negative Film

1968 ◽  
Vol 77 (10) ◽  
pp. 1140-1140
Author(s):  
W. H. Bahler ◽  
M. L. Judd ◽  
F. W. Spangler ◽  
A. L. Williams
1960 ◽  
Vol 69 (10) ◽  
pp. 742-744 ◽  
Author(s):  
F. W. Spangler ◽  
H. R. Beilfuss

1968 ◽  
Vol 77 (10) ◽  
pp. 1136-1136
Author(s):  
W. H. Bahler ◽  
M. L. Judd ◽  
F. W. Spangler ◽  
A. L. Williams

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