Method and apparatus for processing sheets of material in regist

Details Method and apparatus for processing sheets of material in regist Method and apparatus for processing sheets of material in regist

1993-06-17

1994-08-09

Seidel, Richard K.

Cutting

With means to monitor and control operation

Including means to correct the sensed operation

83367, 834252, 83732, 226 20, B65H 23032

Patent

active

053355725

ABSTRACT:
The invention relates to a method, an apparatus and sheets of materials for producing marked security threads as are used to increase the protection of documents and papers of value against forgery. The inventive method is for processing, in particular cutting, security threads out of sheets of material in register, the sheets of material being fed to the processing units in exact alignment. The feed principal is based on

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patent: 4848632 (1989-07-01), Mack et al.
patent: 4892336 (1990-01-01), Kaule et al.
patent: 4955265 (1990-09-01), Nakagawa et al.
patent: 5142955 (1992-09-01), Hale

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