7aaa manual - copy
Bell System Practice 500
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Bell System Practice 500-000-000 Issue 13 April 1968

 
1    Pages

Searchable  Format.

Bell System Practice 500-110-100 Issue 5 October 1965

 
4    Pages

Searchable  Format.

Bell System Practice 500-112-100 Issue 3 February 1967

 
5    Pages

Searchable  Format.

Bell System Practice 500-114-100 Issue A April 1963

 
13    Pages

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Bell System Practice 500-115-400 Issue 1 December 1961

 
2   Pages

Searchable  Format.

Bell System Practice 500-116-400 Issue 1 February 1962

 
1   Pages

Searchable  Format.

Bell System Practice 500-120-100 Issue 5 April 1965

 
4    Pages

Searchable  Format.

Bell System Practice 500-122-180 Issue 4 October 1964

 
6    Pages

Searchable  Format.

Bell System Practice 500-126-100 Issue 2 December 1959

 
3   Pages

Searchable  Format.

Bell System Practice 500-128-180 Issue 2 June 1964

 
4    Pages

Searchable  Format.