IS 9697 : 1980 Specification for Bobbin Cases for Sewing Machines with Rotating Hooks for Industrial Use

1 Scope

Covers the requirements for rotating hook bobbin cases mainlyused in LS 1 (I) and LS 2 (I) class sewing machines for industrialuse.

Note - Symbols LS 1 (I) and LS 2 (I) conform to IS 9152 - 1979`Glossary of terms and identification symbols relating toclassification of industrial sewing machines'.