Hill, Steadman & Simpson
Slider for slide fastener
 A slider for slide fasteners comprises a slider body having a pair of upper and lower wings connected at one end by a neck portion to define a guide channel, a pull tab having a pintle provided at its one end and an attaching lug or lugs provided on the upper surface of the upper wing for pivotally connecting the pintle of the pull tab to the slider body. The upper wing has a land provided on the upper surface of the upper wing and disposed around the attaching lug or lugs. Correspondingly, the pull tab has a recessed surface on each side and adjacent to the pintle for receiving the land when the pull tab rests flat on the upper surface of the upper wing. 
YKK Corporation
Y A
Y10T A44B
additional inventional
Hiroshi
Mizuno