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Coding element e.g. elongated formed coding key used in groove-shaped recess of plug connection arrangement, has recess portion that is formed in region of bulge portion between training side surfaces of changing width portion
Coding element e.g. elongated formed coding key used in groove-shaped recess of plug connection arrangement, has recess portion that is formed in region of bulge portion between training side surfaces of changing width portion
The coding element (1) comprises a changing width portion that is provided with training side surfaces (2,3) on opposite sides to set width of the coding element main portion. A recess portion (4) is formed in region of a bulge portion between the training side surfaces of the changing width portion. An independent claim is included for plug connection arrangement.
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