工业用缝纫机 倒、顺缝纫线迹长度相对误差试验方法
Testing method of relative tolerance of sewing machine forward and backward stitch length

2012-05-24

工业用缝纫机 高、低速缝纫线迹长度相对误差试验方法
Testing method of relative tolerance of sewing machine high and low speed stitch length

2012-05-24

Household sewing-machines; testing of sewing capacity
家用缝纫机；缝纫能力测试

1972-05-01

Household sewing-machines; durability test
家用缝纫机；耐久性试验

1972-05-01

Household sewing-machines; testing of drift
家用缝纫机；漂移测试

1972-05-01

工业用缝纫机 计算机控制锁式线迹刺绣机试验用花样
Industrial sewing machine Computer controlled embroidery machine with a lock stitch pattern test

2012-05-24

Household sewing-machines; testing of loss of tensile strength of needle thread by sewing
家用缝纫机；缝纫时针线抗拉强度损失的测试

1972-05-01

HOUSEHOLD SEWING MACHINES. TESTING OF CARRYING AND PROTECTING MEANS
家用缝纫机 携带和保护工具的测试

1988-02-10

Household sewing-machines; testing of creep of one ply over another
家用缝纫机；一层对另一层的蠕变试验

1972-05-01

Household sewing-machines; testing of non-automatic zig-zag mechanism
家用缝纫机；非自动之字形机构的试验

1972-05-01