Patent
   D284199
Priority
May 20 1983
Filed
Aug 02 1983
Issued
Jun 10 1986
Expiry
Jun 10 2000
Assg.orig
Entity
unknown
17
11
n/a
The ornamental design for a combined ruler, clock and calculator, as shown and combined.

FIG. 1 is a top plan view of a combined ruler, clock and calculator, showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front elevational view thereof, the rear being substantially a mirror image thereto;

FIG. 4 is a right end elevational view thereof;

FIG. 5 is a left end elevational view thereof.

Li, Robert S. K.

Patent Priority Assignee Title
5134780, May 20 1991 WEDGE INNOVATIONS, INC ; WEDGE INNOVATIONS, INC A OKLAHOMA CORPORATION Inclinometer with rail having a hollow I-shaped cross-section
D289414, Jun 19 1985 Carrier Corporation Duct design calculator
D296220, Jul 05 1985 Dah Sun Electronics Company Limited Combined calculator and clipboard
D303124, Oct 06 1986 Data pen
D308644, Sep 09 1987 WEDGE INNOVATIONS, INC ; WEDGE INNOVATIONS, INC A OKLAHOMA CORPORATION Carpenter level
D330682, Apr 11 1991 WEDGE INNOVATIONS, INC ; WEDGE INNOVATIONS, INC A OKLAHOMA CORPORATION Carpenter's level
D360371, May 26 1994 M-D BUILDING PRODUCTS, INC Level
D398250, Oct 20 1997 Crayola LLC Ruler and drawing stencil
D398864, Oct 20 1997 Crayola LLC Ruler and drawing template
D398865, Oct 20 1997 Crayola LLC Protractor and drawing template
D408743, Mar 06 1998 Appointment clock
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D438235, Jul 10 2000 Limax Electronics Co., Ltd. Calculator
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D459383, Mar 14 2001 Self opening calculator clock
D510042, Dec 29 2004 Sun Coast Merchandise Corp. Calculator rule
D615428, Jul 17 2009 Best-Supplier International Inc. Solar power ruler calculator with see-through touch screen keyboard
Patent Priority Assignee Title
1334145,
4158229, Jun 24 1977 Electronic rule for precise distance measurement and distance setting
4282571, Jan 22 1979 Electronic distance measurement and displaying apparatus
4382280, Dec 30 1980 ADVANCED HANDICAPPING TECHNOLOGY, INC Electronic horse race analyzer
4404643, Feb 27 1980 Hosiden Electronics Co. Portable electronic calculator with a writing instrument
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201300,
D248995, Dec 29 1976 Sharp Kabushiki Kaisha Electronic calculating machine
D258740, Oct 08 1977 Casio Computer Co., Ltd. Electronic desk top calculator
D271025, Jul 19 1982 RJP Electronics Limited Combined ruler and electronic calculator
D279381, Jan 19 1983 Cal-Comp Electronice, Inc. Calculator ruler or similar article
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