Patent
   D288571
Priority
Apr 20 1984
Filed
Apr 20 1984
Issued
Mar 03 1987
Expiry
Mar 03 2001
Assg.orig
Entity
unknown
1
7
n/a
The ornamental design for a rear-projection lectern, as shown.

FIG. 1 is a perspective view of a rear-projection lectern showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a left side elevational view thereof; and

FIG. 6 is a right side elevational view thereof.

Vanderwerf, Dennis F.

Patent Priority Assignee Title
D865422, May 31 2018 LEGRAND AV INC Lectern
Patent Priority Assignee Title
3169442,
4379312, Jan 12 1981 LINDBERG, ROBERT H , P O BOX 3522, SEATTLE, 98124 Control system for audio-visual projector
202830,
219919,
220658,
229716,
234009,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 16 1984VANDERWERF, DENNIS F Minnesota Mining and Manufacturing CompanyASSIGNMENT OF ASSIGNORS INTEREST 0042560185 pdf
Apr 20 1984Minnesota Mining and Manufacturing Company(assignment on the face of the patent)
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