Patent
   D248595
Priority
Mar 21 1977
Filed
Mar 21 1977
Issued
Jul 18 1978
Expiry
Jul 18 1992
Assg.orig
Entity
unknown
5
2
n/a
The ornamental design for a portable calculating machine, as shown and described.

FIG. 1 is a perspective view of a first embodiment of a portable calculating machine showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a rear elevational view thereof; and

FIG. 6 is a perspective view of a second embodiment of the portable calculating machine;

FIG. 7 is a front elevational view thereof;

FIG. 8 is a top plan view thereof;

FIG. 9 is a right side elevational view thereof, the left side being a mirror image of the right side shown; and

FIG. 10 is a rear elevational view thereof.

FIG. 11 is a bottom view of the first and second embodiments of the portable calculating machine.

Leer, Stuart D., Beitler, Myron

Patent Priority Assignee Title
D265065, May 12 1980 Powers Medical Systems, Inc. Cardiac pacemaker tester
D276920, Mar 26 1979 LaFrance Corporation Readily disassembled instrument housing
D303112, Aug 20 1986 Universal Data Incorporated Portable hand held data entry terminal
D335892, Dec 23 1991 Casio Computer Co., Ltd. Electronic calculator
D943661, May 23 2019 HAREX INFOTECH INC Electronic calculator
Patent Priority Assignee Title
3887791,
226858,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Mar 21 1977Litton Business Systems, Inc.(assignment on the face of the patent)
Oct 16 1984MONROE SYSTEMS FOR BUSINESS, INC A NE CORPMELLON BANK NATIONAL ASSOCIATIONSECURITY INTEREST SEE DOCUMENT FOR DETAILS 0043210976 pdf
Nov 26 1984LITTON BUSINESS SYSTEMS, INC A NY CORPMONROE SYSTEMS FOR BUSINESS, INC A NE CORPASSIGNMENT OF ASSIGNORS INTEREST 0044230130 pdf
Sep 18 1990MONROE SYSTEMS FOR BUSINESS, INC , A CORP OF NVMELLON BANK EAST PSFS NATIONAL ASSOCIATIONSECURITY INTEREST SEE DOCUMENT FOR DETAILS 0056520030 pdf
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