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| CPC | COOPERATIVE PATENT CLASSIFICATION |
| | INDEXING SCHEME RELATING TO BUTTONS, PINS, BUCKLES OR SLIDE FASTENERS, AND TO JEWELLERY, BRACELETS OR OTHER PERSONAL ADORNMENTS NOTE - | This subclass constitutes an internal scheme for indexing only. |
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| A44D 2200/00 | General types of fasteners |
| A44D 2200/12 | . . | made of two identical elements |
| A44D 2201/02 | . | with both stud and socket members made from one piece |
| A44D 2201/04 | . | with an elastic stud member |
| A44D 2201/06 | . | with an elastic socket member |
| A44D 2201/10 | . | Details of the stud or socket member |
| A44D 2201/14 | . . . | with opening of the fastener by sliding of the stud member |
| A44D 2201/16 | . . . | with opening of the fastener by rotation of the stud member |
| A44D 2201/32 | . . . | with one or more springs retaining the stud member |
| A44D 2201/34 | . . . | with one or more push-buttons acting perpendicularly to the main plane of the stud member |
| A44D 2201/36 | . . . . | with two or more push-buttons |
| A44D 2201/38 | . . . | with one or more push-buttons acting parallel to the main plane of the stud member |
| A44D 2201/40 | . . . . | with two or more push-buttons |
| A44D 2201/50 | . | Button-type snap fasteners |
| A44D 2203/00 | Fastening by use of magnets |
| A44D 2205/00 | Fastening by use of touch and close elements |
| A44D 2211/00 | Accessories for fastening means |
| A44D 2211/02 | . | Sliding sleeve covering the fastened extremities |
