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Inventor

MARTENS ROLF

DE5 patents
⚠️ This page may combine multiple inventors who share the name “MARTENS ROLF”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

KOH I NOOR RAPIDOGRAPH

3 patents
US4282536AAug 4, 1981

Process and apparatus for automatic drafting devices

KOH I NOOR RAPIDOGRAPH16 citations70
US4552483ANov 12, 1985

Device for covering an oblong opening in a housing

KOH I NOOR RAPIDOGRAPH5 citations59
US4489333ADec 18, 1984

Device for exchanging objects in particular writing instruments

KOH I NOOR RAPIDOGRAPH5 citations57

FRANCOTYP POSTALIA A G & CO

1 patent
US6059402AMay 9, 2000

Configuration for ink supply and ink disposal for an ink printing head

FRANCOTYP POSTALIA A G & CO12 citations68

GAFFAL KARL

1 patent
US3949971AApr 13, 1976

Pump construction

GAFFAL KARL1 citations42