B43L 9/002

Circular curve-drawing or like instruments: with perforated or marked discs

Official title: {with perforated or marked discs}

B43L9/002 (Circular curve-drawing or like instruments: with perforated or marked discs) appears on 13 US grants and 1 published applications in this corpus.

Search patents in B43L
Granted patents
13
Published applications
1
Assignees
2
Inventors
13
Latest grant
20 Feb 2018

Filings by year

B43L 9/002: granted patents and published applications per publication year
YearGranted patentsPublished applications
197810
197900
198000
198100
198210
198300
198400
198510
198610
198700
198800
198900
199010
199100
199210
199300
199410
199520
199600
199700
199800
199920
200000
200100
200200
200300
200400
200500
200600
200700
200800
200900
201000
201100
201200
201300
201410
201500
201601
201700
201810

By publication year. Applications have been published since 2001.