I.S.I. guide, international seal interchange : world's most complete history of oil and grease seal and 'o' ring alternatives, computerized interchange of various types and sizes of seals for ground and other equipment

I.S.I. guide : international seal interchange, world's most complete history of oil and grease seal alternatives : a computerized interchange of vorious types and sizes of seals for ground and other equipment

I.B.I. guide, world's most complete history bearing number alternatives : a computerized interchange anti-friction ball and roller bearing numbers for ground equipment, international bearing interchange