Graham S. W. Hawkins

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Coulsdon, GB

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Patents Grantslast 30 patents

Information Patent Grant
Rotary card index system
- Patent number 4,204,351
- Issue date May 27, 1980
- Business Efficiency Aids, Inc.
- Graham S. W. Hawkins
- B42 - BOOKBINDING ALBUMS FILES SPECIAL PRINTED MATTER