Compasses with parallel legs

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Patents Grantslast 30 patents

Information Patent Grant
Combination tool assembly for graphic art
- Patent number 5,233,715
- Issue date Aug 10, 1993
- Ming-Tzung Huang
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
Compass
- Patent number 4,662,076
- Issue date May 5, 1987
- Mohammad M. Saadat
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
2818650
- Patent number 2,818,650
- Issue date Jan 7, 1958
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
2701917
- Patent number 2,701,917
- Issue date Feb 15, 1955
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
2401321
- Patent number 2,401,321
- Issue date Jun 4, 1946
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
1944819
- Patent number 1,944,819
- Issue date Jan 23, 1934
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
1835674
- Patent number 1,835,674
- Issue date Dec 8, 1931
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES
Information Patent Grant
459519
- Patent number 459,519
- Issue date Sep 15, 1891
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES