Protractor heads

Industry

CPC
B43L13/08

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Parent Industries

BPERFORMING OPERATIONS TRANSPORTING B43Writing accessories B43LARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING B43L13/00Drawing instruments, or writing or drawing appliances or accessories not otherwise provided for

Current Industry

B43L13/08Protractor heads

Industries

Patents Grantslast 30 patents

Information Patent Grant
All-in-one drawing apparatus
- Patent number 5,915,807
- Issue date Jun 29, 1999
- Artemio M. Ilagan
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Double-sided miter box for machine tools in particular panel saws
- Patent number 5,566,603
- Issue date Oct 22, 1996
- Reiner Moeres
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Protractor with a rotor
- Patent number 5,408,753
- Issue date Apr 25, 1995
- Wong Y. Hong
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Drafting head for a drafting machine
- Patent number 5,191,715
- Issue date Mar 9, 1993
- Franz Kuhlmann Prazisions-Mechanic und Mashinenbau GmbH & Co. K.G.
- Uwe Jopt
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Head of universal parallel ruler
- Patent number 5,142,789
- Issue date Sep 1, 1992
- Mutoh Industries Ltd.
- Kazutoshi Shimizu
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Plotting and drafting apparatus with magnetic guide
- Patent number 5,012,586
- Issue date May 7, 1991
- Anthony J. Ashworth
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Draughting tables, drawing boards, drawing instruments and analogou...
- Patent number 4,934,061
- Issue date Jun 19, 1990
- Jonathan Knight
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Scale balancing device in drawing machine
- Patent number 4,837,938
- Issue date Jun 13, 1989
- Asahi Seimitsu Kabushiki Kaisha
- Masahiro Tanaka
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Student's multi-function protractor
- Patent number 4,791,733
- Issue date Dec 20, 1988
- Huey Bao Co., Ltd.
- Shih C. Pan
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Numerically or manually controlled moving carriage drafting machine
- Patent number 4,738,029
- Issue date Apr 19, 1988
- Kurt Held
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Scale balancing device in universal parallel ruler device
- Patent number 4,601,107
- Issue date Jul 22, 1986
- Yasutomo Yoshida
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Scale balancing device in universal parallel ruler device
- Patent number 4,587,742
- Issue date May 13, 1986
- Mutoh Industry Ltd.
- Yasutomo Yoshida
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Scale balancing device in universal parallel ruler device
- Patent number 4,580,351
- Issue date Apr 8, 1986
- Yasutomo Yoshida
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Scale balancing device in universal parallel ruler device
- Patent number 4,578,872
- Issue date Apr 1, 1986
- Yasutomo Yoshida
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Scale balancing device in universal parallel ruler device
- Patent number 4,571,846
- Issue date Feb 25, 1986
- Hideo Mikuriya
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Drawing head for a drawing machine
- Patent number 4,495,708
- Issue date Jan 29, 1985
- Franz Kuhlmann Prazisionsmechanik und Maschinenbau GmbH & Co. KG
- Uwe Jopt
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Control device for drawing instruments
- Patent number 4,486,956
- Issue date Dec 11, 1984
- Alpia S.A.
- Alain Bruneau
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Drawing head
- Patent number 4,486,958
- Issue date Dec 11, 1984
- Franz Kuhlmann Prazisionsmechanik und Maschinenbau GmbH & Co. KG
- Uwe Jopt
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Head supporting device for universal parallel ruler
- Patent number 4,483,081
- Issue date Nov 20, 1984
- Asahi Seimitsu Kabushiki Kaisha
- Takashi Komine
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Drawing instrument and locking apparatus therefor
- Patent number 4,449,304
- Issue date May 22, 1984
- Binney & Smith Inc.
- Ronald E. Underwood
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Drafting apparatus
- Patent number 4,386,470
- Issue date Jun 7, 1983
- David L. E. Perry
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Drafting machine head
- Patent number 4,367,589
- Issue date Jan 11, 1983
- Joachim Mainka
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Protractor unit for drawing-board
- Patent number 4,359,824
- Issue date Nov 23, 1982
- Alpia S.A.
- Alain Bruneau
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Drafting machine attachment
- Patent number 4,359,825
- Issue date Nov 23, 1982
- Jerroll C. Erickson
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Head supporting device for universal parallel ruler
- Patent number 4,333,245
- Issue date Jun 8, 1982
- Asahi Seimitsu Kabushiki Kaisha
- Shigeo Iseya
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Universal parallel ruler with converted display of displacement
- Patent number 4,270,277
- Issue date Jun 2, 1981
- Asahi Seimitsu Kabushiki Kaisha
- Masao Koenuma
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Universal parallel ruler including scale setting device
- Patent number 4,268,969
- Issue date May 26, 1981
- Asahi Seimitsu Kabushiki Kaisha
- Masao Koenuma
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Drawing apparatus
- Patent number 4,241,512
- Issue date Dec 30, 1980
- Max Co. Ltd.
- Kimijima Chikanobu
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Universal parallel ruler for three-dimensional drawing
- Patent number 4,233,751
- Issue date Nov 18, 1980
- Asahi Seimitsu Kabushiki Kaisha
- Masao Koenuma
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Universal parallel ruler with converted display of displacement
- Patent number 4,221,056
- Issue date Sep 9, 1980
- Asahi Seimitsu Kabushiki Kaisha
- Masao Koenuma
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
Drafting ruler
- Publication number 20060283032
- Publication date Dec 21, 2006
- Yao-Te Yang
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Protractor heads

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

All-in-one drawing apparatus

Double-sided miter box for machine tools in particular panel saws

Protractor with a rotor

Drafting head for a drafting machine

Head of universal parallel ruler

Plotting and drafting apparatus with magnetic guide

Draughting tables, drawing boards, drawing instruments and analogou...

Scale balancing device in drawing machine

Student's multi-function protractor

Numerically or manually controlled moving carriage drafting machine

Scale balancing device in universal parallel ruler device

Scale balancing device in universal parallel ruler device

Scale balancing device in universal parallel ruler device

Scale balancing device in universal parallel ruler device

Scale balancing device in universal parallel ruler device

Drawing head for a drawing machine

Control device for drawing instruments

Drawing head

Head supporting device for universal parallel ruler

Drawing instrument and locking apparatus therefor

Drafting apparatus

Drafting machine head

Protractor unit for drawing-board

Drafting machine attachment

Head supporting device for universal parallel ruler

Universal parallel ruler with converted display of displacement

Universal parallel ruler including scale setting device

Drawing apparatus

Universal parallel ruler for three-dimensional drawing

Universal parallel ruler with converted display of displacement

Patents Applicationslast 30 patents

Drafting ruler