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W. F. G. Kamm
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Bad Oeynhausen, DT
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last 30 patents
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Patent Grant
Process for punching holes and slots in structural timber
Patent number
4,071,637
Issue date
Jan 31, 1978
Eisenwerk Weserhutte AG
Wolfhart Dittrich
B27 - WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL NAILING OR STAPLING MACH...