Assignee

PENCELL CO LTD

TW·2 granted patents·17 citations·filing 1988–1993

Technology mixB43K2

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2 records

0146US5292202ARetractable, refillable, sharpen-free pencil assemblyPENCELL CO LTD·Filed 1993·Granted Mar 8, 1994·13 cites·3 claims
0232US4919556AWriting implement having simplified lead-feeding mechanismPENCELL CO LTD·Filed 1988·Granted Apr 24, 1990·4 cites·5 claims

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