Robert R. Parker

Person

Des Plaines, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Computer controlled video device and slide projector interface arra...
- Patent number 4,698,770
- Issue date Oct 6, 1987
- Bell & Howell Company
- Dev R. Rattan
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Control arrangement and method for video tape recorder
- Patent number 4,578,718
- Issue date Mar 25, 1986
- Bell & Howell Company
- Robert R. Parker
- G11 - INFORMATION STORAGE
Information Patent Grant
Interactive training apparatus
- Patent number 4,576,578
- Issue date Mar 18, 1986
- Bell & Howell Company
- Robert R. Parker
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Computer controlled slide projector interface arrangement
- Patent number 4,568,161
- Issue date Feb 4, 1986
- Bell & Howell Company
- Dominic J. DiGianfilippo
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Random access control apparatus and method for slide projector
- Patent number 4,470,675
- Issue date Sep 11, 1984
- Bell & Howell Company
- Dominic J. Di Gianfilippo
- G05 - CONTROLLING REGULATING
Information Patent Grant
Slide projector control apparatus
- Patent number 4,452,518
- Issue date Jun 5, 1984
- Bell & Howell Company
- Dominic J. Di Gianfilippo
- G05 - CONTROLLING REGULATING
Information Patent Grant
Slide tray position sensing arrangement for slide projector apparat...
- Patent number 4,440,478
- Issue date Apr 3, 1984
- Bell & Howell Company
- Nicholas Mischenko
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Tray drive and slide change control apparatus for slide projector
- Patent number 4,432,618
- Issue date Feb 21, 1984
- Bell & Howell Company
- Robert R. Parker
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection lamp control arrangement
- Patent number 4,283,658
- Issue date Aug 11, 1981
- Bell & Howell Company
- Robert R. Parker
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Changeover control arrangement for projection apparatus
- Patent number 4,218,115
- Issue date Aug 19, 1980
- Bell & Howell Company
- Robert R. Parker
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projector apparatus and control arrangement
- Patent number 4,202,611
- Issue date May 13, 1980
- Bell & Howell Company
- Robert R. Parker
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Automatic focusing system for projectors
- Patent number 4,198,138
- Issue date Apr 15, 1980
- Bell & Howell Company
- Robert R. Parker
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Operator responsive audio-visual teaching apparatus
- Patent number 4,122,613
- Issue date Oct 31, 1978
- Bell & Howell Company
- George C. Karalus
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Low noise magnetic transducer preamplifier having flat response
- Patent number 4,041,538
- Issue date Aug 9, 1977
- Bell & Howell Company
- Robert R. Parker
- G11 - INFORMATION STORAGE

Robert R. Parker

Person

Patents Grantslast 30 patents

Computer controlled video device and slide projector interface arra...

Control arrangement and method for video tape recorder

Interactive training apparatus

Computer controlled slide projector interface arrangement

Random access control apparatus and method for slide projector

Slide projector control apparatus

Slide tray position sensing arrangement for slide projector apparat...

Tray drive and slide change control apparatus for slide projector

Projection lamp control arrangement

Changeover control arrangement for projection apparatus

Projector apparatus and control arrangement

Automatic focusing system for projectors

Operator responsive audio-visual teaching apparatus

Low noise magnetic transducer preamplifier having flat response