PT93482A - ACCESSORY FOR A HYPERTEXT BOOK - Google Patents

ACCESSORY FOR A HYPERTEXT BOOK

Info

Publication number
PT93482A
PT93482A PT9348290A PT9348290A PT93482A PT 93482 A PT93482 A PT 93482A PT 9348290 A PT9348290 A PT 9348290A PT 9348290 A PT9348290 A PT 9348290A PT 93482 A PT93482 A PT 93482A
Authority
PT
Portugal
Prior art keywords
accessory
hypertext
book
hypertext book
Prior art date
Application number
PT9348290A
Other languages
Portuguese (pt)
Inventor
David C Schwartz
Original Assignee
Productive Environments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US07/324,417 external-priority patent/US5380043A/en
Application filed by Productive Environments Inc filed Critical Productive Environments Inc
Publication of PT93482A publication Critical patent/PT93482A/en

Links

PT9348290A 1989-03-16 1990-03-16 ACCESSORY FOR A HYPERTEXT BOOK PT93482A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/324,417 US5380043A (en) 1989-03-16 1989-03-16 Hypertext book attachment
US07/490,828 US5316341A (en) 1989-03-16 1990-03-08 Hypertext book attachment

Publications (1)

Publication Number Publication Date
PT93482A true PT93482A (en) 1992-01-31

Family

ID=26984452

Family Applications (1)

Application Number Title Priority Date Filing Date
PT9348290A PT93482A (en) 1989-03-16 1990-03-16 ACCESSORY FOR A HYPERTEXT BOOK

Country Status (3)

Country Link
GR (1) GR900100199A (en)
MX (1) MX172843B (en)
PT (1) PT93482A (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490147A (en) * 1945-05-02 1949-12-06 Leslie A Minton Float leaf carrier and bookmark
US2541735A (en) * 1948-01-06 1951-02-13 Jr William G Albrecht Bookmark
NL6406355A (en) * 1964-06-04 1965-12-06
DE1536611A1 (en) * 1966-09-23 1970-01-29 Holm Per Tore Calendar device
US4573821A (en) * 1983-01-07 1986-03-04 Gilreath Charles T Window index system for ring binders

Also Published As

Publication number Publication date
GR900100199A (en) 1991-07-31
MX172843B (en) 1994-01-17

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Legal Events

Date Code Title Description
BB1A Laying open of patent application

Effective date: 19911028

FC3A Refusal

Effective date: 19960109