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HK579A - Pencil sharpening apparatus - Google Patents

Pencil sharpening apparatus

Info

Publication number
HK579A
HK579A HK5/79A HK579A HK579A HK 579 A HK579 A HK 579A HK 5/79 A HK5/79 A HK 5/79A HK 579 A HK579 A HK 579A HK 579 A HK579 A HK 579A
Authority
HK
Hong Kong
Prior art keywords
sharpening apparatus
pencil sharpening
pencil
sharpening
Prior art date
Application number
HK5/79A
Original Assignee
Ketcham & Mcdougall
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ketcham & Mcdougall filed Critical Ketcham & Mcdougall
Publication of HK579A publication Critical patent/HK579A/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
    • B43L23/00—Sharpeners for pencils or leads
    • B43L23/02—Sharpeners for pencils or leads with gearing
HK5/79A 1975-03-19 1979-01-04 Pencil sharpening apparatus HK579A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/559,908 US3937239A (en) 1975-03-19 1975-03-19 Time delay mechanism for pencil sharpener

Publications (1)

Publication Number Publication Date
HK579A true HK579A (en) 1979-01-12

Family

ID=24235557

Family Applications (1)

Application Number Title Priority Date Filing Date
HK5/79A HK579A (en) 1975-03-19 1979-01-04 Pencil sharpening apparatus

Country Status (3)

Country Link
US (1) US3937239A (en)
GB (1) GB1511176A (en)
HK (1) HK579A (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6470929B2 (en) * 2001-03-30 2002-10-29 Hunt Holdings, Inc. Pencil sharpener
DE60228482D1 (en) * 2001-11-13 2008-10-02 Acme United Corp COATING FOR PAPER CUTTING DEVICES
US7913402B2 (en) * 2001-11-13 2011-03-29 Acme United Corporation Coating for cutting implements
US20060137971A1 (en) * 2002-07-01 2006-06-29 Larry Buchtmann Method for coating cutting implements
US7934319B2 (en) * 2002-10-28 2011-05-03 Acme United Corporation Pencil-sharpening device
JP2006110805A (en) * 2004-10-13 2006-04-27 Ktf:Kk Pencil sharpening machine
WO2008077135A1 (en) * 2006-12-19 2008-06-26 Acme United Corporation Cutting instrument
CN102963189B (en) * 2012-11-09 2014-09-24 顺德工业(江苏)有限公司 Pencil sharpening machine
CN102963190A (en) * 2012-11-09 2013-03-13 顺德工业(江苏)有限公司 Concentric mechanism in pencil sharpener
CN104553535A (en) * 2014-11-24 2015-04-29 得力集团有限公司 Handheld pencil sharpener
CN106476504B (en) * 2016-11-11 2018-07-17 刘竹青 A kind of electro-motion pencil sharpener
WO2021071905A1 (en) * 2019-10-11 2021-04-15 Sanford L.P. Sharpeners for writing instruments

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2408767A (en) * 1944-06-10 1946-10-08 Bert M Morris Co Pencil sharpener
US2822781A (en) * 1951-01-22 1958-02-11 Edward F Burton Electric pencil sharpener

Also Published As

Publication number Publication date
US3937239A (en) 1976-02-10
GB1511176A (en) 1978-05-17

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