APRON OF DRAFTING SYSTEM

APRON OF DRAFTING SYSTEM

  • CN 87,212,525 U
  • Filed: 11/26/1987
  • Issued: 09/07/1988
  • Est. Priority Date: 11/26/1987
  • Status: Active Grant
First Claim
Patent Images

1. , a kind of apron that is used for the spinning, drawing device, form by internal layer 1, skin 2 and strengthening layer 3, the apron inner surface is shaped on the protrusion decorative pattern, it is characterized in that it is closed decorative pattern 5 that the apron inner surface protrudes decorative pattern, the top of protrusion decorative pattern 5 forms the apron inner surface and has the structure of ten million small pit 4 at grade.

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